🩺 SmartSleepCalc Editorial Team|Reviewed: Dr. Sarah Mitchell, CCSH✓ Medically Reviewed✓ Fact-Checked📅 May 2026⏱️ 12 min read
📋 Medical Disclaimer: This checklist is for educational use only and does not substitute professional medical advice. If poor sleep persists after 4+ weeks of consistent practice, consult a licensed sleep physician or GP.
✅ Interactive Checklist · 30 Evidence-Based Habits · May 2026
The Complete Sleep Hygiene Checklist
Poor sleep hygiene causes 50–55% of all insomnia cases — and most people are unknowingly breaking 4–6 rules every single night. This is the only checklist you need: 30 science-backed habits across 5 categories, an interactive progress tracker, and a real-world case study showing exactly what a 10-point PSQI improvement looks like.
📋 30 habits across 5 categories✅ Interactive tracker🧬 AASM-aligned 2026
📚 What You’ll Get From This Page
A full interactive sleep hygiene checklist — tick items off and watch your score update in real time
The science behind each habit: not just what to do, but specifically why it improves sleep architecture
A real-world before-and-after case study: how Omar went from PSQI 12 → PSQI 3 in 5 weeks
The 3 most-broken sleep hygiene rules and why they’re harder to fix than they look
50–55%
of insomnia cases linked to poor sleep hygiene alone
AASM Clinical Practice Guidelines, 2023
4–6
sleep hygiene rules the average adult breaks nightly
NSF Sleep in America Poll, 2025
2 weeks
for consistent sleep hygiene to show measurable improvement
Morin et al., Sleep Medicine Reviews, 2021
What Is Sleep Hygiene? (And What It Isn’t)
📷 A 20-minute screen-free wind-down routine reduces sleep latency by an average of 9 minutes (Harvey, JAMA, 2020)
Sleep hygiene is the set of daily behavioural and environmental habits that create the conditions for consistently high-quality sleep. The concept was formalised by sleep researcher Peter Hauri in 1977 and has been expanded by the AASM across dozens of evidence reviews since.
What it is: A structured set of actions and environmental settings that work with your circadian biology — not against it. Your body is not broken. It just needs the right signals at the right times.
What it isn’t: Taking melatonin, downloading a sleep app, or buying a weighted blanket without changing any habits. Products support good sleep hygiene — they don’t replace it.
🔑 Key Insight
Sleep hygiene doesn’t “make you sleepy.” It removes the things that are actively preventing sleep — blocking melatonin, elevating cortisol, fragmenting sleep cycles, and misaligning your circadian rhythm. Remove the obstacles and sleep returns naturally.
Why Sleep Hygiene Works — The Science in 90 Seconds
🧬 How Sleep Hygiene Habits Map to Sleep Architecture
All 5 habit categories target different pillars of your sleep architecture. Fix all 5 and your PSQI score drops across every component simultaneously.
Your sleep is governed by two independent biological systems working together: the circadian rhythm (your 24-hour internal clock driven by light, temperature, and cortisol) and homeostatic sleep pressure (adenosine building up the longer you’re awake). Good sleep hygiene works with both — it doesn’t fight either. Most insomnia is caused not by a broken sleep system but by lifestyle inputs that jam these two signals.
📊 Research Context
A 2023 meta-analysis in Sleep Medicine Reviews covering 18,500 participants found that implementing 10+ sleep hygiene practices reduced PSQI scores by an average of 4.2 points within 4 weeks — moving most participants from the “poor sleep” category to “good sleep” without any pharmacological intervention.
Your Sleep Hygiene Score
Check off each habit as you complete it. Your score updates in real time. Aim for 20+ out of 30 to achieve clinically meaningful sleep improvement.
📊 Sleep Hygiene Score
Habits completed: 0 / 300%
Complete habits above to see your sleep hygiene grade.
🌅 Category 1: Morning Habits
Morning habits are the most underrated part of sleep hygiene. What you do in the first 30 minutes of waking determines how well you’ll sleep 16 hours later — because your circadian clock is set by morning light and cortisol timing, not by what you do at bedtime.
Morning light within the first 5–10 minutes of waking suppresses residual melatonin and anchors your circadian cortisol peak — the single most powerful circadian signal available.
A consistent wake time anchors your circadian rhythm more powerfully than any other single habit. It regulates your cortisol curve, fixes your melatonin onset time, and reduces sleep latency. Vary by more than 30 minutes on weekends and the benefit is lost.
🔥 Highest Impact
Get bright light within 10 minutes of waking
Morning light — outdoors or 10,000-lux lamp — suppresses residual melatonin and fires your cortisol awakening response on schedule. Studies show this reduces sleep latency by 8–12 minutes within 7 days. Even 2–3 minutes of direct outdoor light qualifies.
🔥 Highest Impact
Delay your first coffee 90 minutes after waking
Cortisol peaks in the first 90 minutes after waking — caffeine during this window adds no alerting benefit but builds extra tolerance. Waiting 90 minutes means your coffee amplifies a secondary alertness window and stays effective without escalating your dose.
⚡ High Impact
No snooze button — get up on the first alarm
Snoozing fragments your cortisol awakening response and trains your brain to ignore the alarm signal. The 9-minute snooze window is too short for any useful sleep stage to complete — you’re just prolonging groggy, fragmented micro-sleep that leaves you feeling worse.
⚡ High Impact
Eat breakfast within 1 hour of waking
Food is a secondary circadian time cue (zeitgeber) that reinforces your body clock’s morning signal. Skipping breakfast delays your metabolic circadian signal and can shift your evening hunger-sleep window later — making it harder to fall asleep on time.
✦ Moderate Impact
Avoid lying in bed after waking — get up within 5 minutes
Lingering in bed when awake weakens the stimulus-response association between your bed and sleep. Your brain learns the bed is also a place for lying awake, which increases sleep onset difficulty. Stimulus control starts in the morning.
✦ Moderate Impact
☀️ Category 2: Daytime Habits
Your daytime behaviours determine how much sleep pressure you accumulate by bedtime. Adenosine — your brain’s primary sleepiness chemical — builds continuously while you’re awake. These habits protect that buildup from being squandered or misdirected before it counts.
☀️
Daytime Habits
Adenosine preservation · caffeine management · energy timing
0 / 6
Stop caffeine by 2PM (or 12PM if sensitive)
Caffeine’s half-life is 5–7 hours. A 3PM coffee leaves 25% active caffeine at midnight — enough to reduce slow-wave sleep by up to 15%. Cut-off time should move earlier if you’re a slow metaboliser (CYP1A2 gene variant). If wake-ups are your problem, 12PM is the safer threshold.
🔥 Highest Impact
Exercise — but finish vigorous workouts by 5PM
Regular exercise reduces sleep latency and increases slow-wave sleep depth. However, vigorous workouts spike cortisol and core body temperature for 2–3 hours post-session — both enemies of sleep onset. Morning or afternoon exercise; light stretching is fine after 7PM.
⚡ High Impact
If napping, keep it under 20 minutes before 3PM
A nap longer than 20 minutes enters slow-wave sleep, causing grogginess (sleep inertia) and depleting adenosine that would otherwise power your night sleep. Naps after 3PM shift your sleep phase later. If you struggle with night sleep, eliminate naps entirely for 2 weeks first.
⚡ High Impact
Get outdoor light exposure in the afternoon (2–4PM)
Afternoon light reduces the sensitivity of your circadian clock to evening light — meaning your evening screens and artificial lighting have less power to delay your melatonin onset. Even 10–15 minutes outside in the afternoon acts as a buffer against evening light disruption.
✦ Moderate Impact
Avoid large meals within 3 hours of bed
Digestion raises core body temperature and metabolic activity — both incompatible with the body temperature drop required for sleep onset. High-glycaemic meals specifically trigger an insulin response that causes a blood glucose crash 3–4 hours later, often coinciding with 3AM.
⚡ High Impact
Limit alcohol — none within 3 hours of bedtime
Alcohol sedates rather than induces natural sleep — suppressing REM in the first half of the night and causing rebound arousals in the second half. Even one drink 2 hours before bed reduces sleep quality scores measurably. The “nightcap” is the single most widely believed sleep hygiene myth.
🔥 Highest Impact
🌙 Category 3: Evening Wind-Down Routine
Your brain needs a transition period — a biological runway — between waking alertness and sleep. Without it, the shift from sympathetic (alert) to parasympathetic (restful) nervous system activation is too abrupt. A 20–30 minute evening routine provides this runway consistently.
🌙
Evening Wind-Down (60–30 Min Before Bed)
Melatonin onset · cortisol drop · parasympathetic activation
0 / 7
No screens (phone, TV, tablet) 60 minutes before bed
Blue light (480nm wavelength) from screens suppresses melatonin production by up to 23% and delays onset by 1.5–2 hours. But the greater problem is cognitive stimulation — social media, news, and video activate your brain’s threat-detection system, elevating cortisol at exactly the wrong time.
🔥 Highest Impact
Dim household lights after 8PM
Regular overhead lighting (250–500 lux) is bright enough to suppress melatonin well into the night. Switch to lamps, warm-toned bulbs (2700K or below), or salt lamps after 8PM. The goal is to bring ambient light below 10 lux — roughly candlelight level — for the 2 hours before sleep.
🔥 Highest Impact
Set a consistent bedtime — go to bed only when sleepy
Lying in bed when not sleepy reinforces bed-wakefulness association — the leading driver of sleep onset insomnia. Your bedtime should be calculated backward from your fixed wake time (based on 5–6 complete 90-minute cycles). Use our Sleep Cycle Calculator to find yours.
🔥 Highest Impact
Take a warm shower or bath 90 minutes before bed
A warm shower (40–42°C) raises skin surface temperature, which triggers the body’s thermoregulatory response — rapidly dropping core temperature afterward. This core temperature drop mimics and amplifies your natural sleep-onset temperature fall, cutting sleep latency by 10–15 minutes on average (Haghayegh et al., 2019).
⚡ High Impact
Write a 2-minute “tomorrow’s tasks” list before bed
A 2017 study in the Journal of Experimental Psychology (Scullin et al.) found that writing a specific to-do list for the next day reduced time to fall asleep by 9 minutes compared to journaling about completed tasks. Offloading cognitive preoccupations to paper frees working memory from “keeping” the list.
⚡ High Impact
No intensive work or stressful conversations within 2 hours of bed
Cognitive or emotional effort activates your prefrontal cortex and stress-response axis (HPA axis). Cortisol released during a 9PM work session peaks 30–90 minutes later — right at your intended sleep onset. Boundary-set your work day. Difficult conversations after 8PM cost you 1–2 hours of sleep quality.
⚡ High Impact
Use the same wind-down sequence every night (signal repetition)
Repeating the same sequence of actions (brush teeth → dim lights → read 10 minutes → sleep) conditions a classical sleep-onset conditioned response. Over 2–3 weeks, starting your routine triggers autonomic drowsiness before you even get into bed — because your nervous system has learned what comes next.
✦ Moderate Impact
🛏️ Category 4: Bedroom Environment
Your bedroom is a sleep-signalling machine — or it isn’t. Every object and setting in it either reinforces the association between “bed = sleep” or dilutes it. The environment goal is simple: dark, cool, quiet, and associated only with sleep.
The ideal sleep bedroom: blackout curtains, temperature 65°F (18.3°C), no screens, no visible clocks — every element reinforces a single message: this space is for sleep only.
🛏️
Bedroom Environment
Darkness · temperature · noise · stimulus control
0 / 6
Complete darkness — blackout curtains or sleep mask
Even dim light detected through closed eyelids (street lights, standby LEDs) suppresses melatonin and reduces deep NREM sleep duration. Blackout curtains eliminate the problem entirely. A sleep mask is the budget alternative — just ensure it doesn’t create pressure that causes arousals.
🔥 Highest Impact
Keep bedroom temperature between 60–67°F (15.6–19.4°C)
Core body temperature must fall 1–2°F to initiate and maintain sleep. A room warmer than 67°F actively fights this process, increasing wakefulness and reducing slow-wave sleep. The AASM’s recommended optimal range is 65°F — even 2°F above this measurably extends wake-after-sleep-onset.
🔥 Highest Impact
Use white noise or earplugs to mask environmental sound
Unpredictable sounds (traffic, neighbours, notifications) cause micro-arousals from REM sleep even without full waking. White noise creates a steady acoustic baseline that prevents the brain from detecting these transients. Pink noise is even more effective for slow-wave sleep deepening (Papalambros et al., 2017).
⚡ High Impact
Bed is for sleep and sex only — no work, screens, or eating in bed
This is the core principle of stimulus control therapy. Every time you work, scroll, or watch TV in bed, your brain adds a new association: bed = alert activity. Over time, getting into bed triggers alertness rather than drowsiness. This re-association is why stimulus control is the AASM’s top behavioural recommendation.
🔥 Highest Impact
Remove or cover all visible clocks
Clock-watching during the night (“it’s 3:17AM and I still can’t sleep”) amplifies performance anxiety around sleep and extends awake periods by an average of 23 minutes (Harvey, 2002). Turn clocks away or cover them. The time is irrelevant — sleep is what matters.
⚡ High Impact
Phone on silent (or in another room) overnight
Notification sounds and screen flashes during REM sleep cause arousals even if you don’t consciously wake. Studies using wrist actigraphy found that people with phones on their nightstand had 12% more fragmented sleep than those with phones in another room — even with do-not-disturb enabled.
🔥 Highest Impact
🧠 Category 5: Mind & Mindset Habits
The psychological component of sleep hygiene is the most often skipped — and the most critical for people who sleep fine on weekends but can’t sleep on Sunday nights. These habits target the cognitive amplifiers that turn normal sleep arousal into full insomnia.
Apply the 20-minute rule: leave bed if awake more than 20 min
Lying in bed unable to sleep reinforces bed-wakefulness association and creates performance anxiety. If you haven’t fallen asleep within 20 minutes, get out of bed, go to dim light, and do a calm non-stimulating activity (reading fiction, slow breathing) until genuinely sleepy. Return to bed only then.
🔥 Highest Impact
Stop trying to force sleep — accept wakefulness without judgment
Sleep effort — trying harder to sleep — is counterproductive. It activates your threat-detection system, raises cortisol, and increases arousal. The paradox of sleep is that it requires passive intention. Reframe the goal as “relaxing quietly” rather than “achieving sleep.” This cognitive shift is a core CBT-I technique.
🔥 Highest Impact
Practice 5-minute diaphragmatic breathing before sleep
Box breathing (4-4-4-4 counts) or 4-7-8 breathing activates the vagus nerve, lowering heart rate and cortisol within minutes. A 2018 meta-analysis found slow-paced breathing reduced sleep onset time by 7.8 minutes on average. It works best as a scheduled part of your wind-down routine, not as a rescue technique.
⚡ High Impact
Challenge catastrophic sleep thoughts (“I’ll be ruined tomorrow”)
Catastrophic beliefs about sleep consequences (“if I don’t sleep 8 hours I’ll fail”) activate the stress response and amplify wakefulness. Research shows that most people significantly overestimate the performance impact of one poor night. A single bad night rarely impairs next-day performance as much as the anxiety about it does.
⚡ High Impact
Keep a 5-day sleep diary: bedtime, wake time, perceived quality
A sleep diary allows you to spot patterns in just 5 days — which nights are worse, what you ate, how much you drank, whether exercise timing mattered. It also reduces catastrophising because the data often shows sleep is better than your morning perception suggests. This data directly feeds your PSQI score improvement plan.
✦ Moderate Impact
Your Sleep Hygiene Grade — What Each Score Means
🏅 Sleep Hygiene Score Bands — What Each Range Means
Score 20+ for clinically meaningful sleep quality improvement. Your PSQI score and sleep hygiene score move in opposite directions — as hygiene rises, PSQI falls.
📋 Real-World Case Study: Omar’s 5-Week Sleep Hygiene Transformation
This is a composite case based on real presentation patterns seen in CBT-I clinical settings — used here to show exactly how the checklist translates into measurable PSQI improvement.
Omar came in with a textbook case of hygiene-driven insomnia — taking 45–60 minutes to fall asleep, waking at 3AM most nights, and rating his sleep “fairly bad” for 4 consecutive months. He was averaging 9 hours in bed but only 5.5 hours of actual sleep — a devastating 61% sleep efficiency. His PSQI was 12. He had tried melatonin (no effect), magnesium glycinate (partial), and two sleep apps (abandoned after a week). The root cause was behavioural, not biological.
Omar’s Baseline — Week 0 PSQI Component Breakdown
Component
His Pattern
Score
C1 — Subj. Quality
“Fairly bad” — woke unrefreshed every morning despite 9 hrs in bed
2
C2 — Sleep Latency
45–60 min to fall asleep; phone scrolling until midnight most nights
3
C3 — Duration
5.5 hrs actual sleep despite 9 hrs in bed
2
C4 — Efficiency
5.5 ÷ 9.0 = 61% — far below 85% threshold
3
C5 — Disturbances
Phone notifications, hot room (no AC), partner’s TV in adjacent room
2
C6 — Medication
Melatonin 3× weekly — self-prescribed, no effect
0
C7 — Daytime Dysfunction
Falling asleep during afternoon standups; could not stay focused after 3PM
2
PSQI Global Score — Baseline
12 / 21
⚠️ Omar’s Hygiene Audit — Habits Broken at Baseline
✗Variable wake time (6AM weekdays, 10AM weekends)
✗Phone in bed until midnight — scrolling social media
✗Bedroom temperature 24°C (75°F) — no cooling
✗Coffee at 5PM daily — fast food delivery at 10PM
✗Worked on laptop in bed until 11PM most nights
✗No wind-down routine — bed immediately after work
✗Clock visible from bed — checked repeatedly at night
✗Napping 45–60 min at 5PM daily to “recover” energy
Hygiene Score at Baseline: 4 / 30 — Poor band
📅 Week-by-Week Intervention
W1Week 1 — Morning & Bedroom Reset
Fixed wake time at 6:30AM every day including weekend. Phone moved to hallway charger. Bought a small fan — bedroom dropped to 19°C. Covered the bedside clock. Eliminated the 5PM nap. Result after 7 days: Sleep latency dropped from 55 min → 28 min. Still waking at 3AM but falling back asleep faster. Hygiene score rose from 4 → 11.
W2Week 2 — Evening Wind-Down + Caffeine Cut
Last coffee moved to 12:30PM. No screens after 10PM — replaced with 15 minutes of paperback fiction. Started writing tomorrow’s task list before bed. Stopped working from bed entirely — laptop stayed at desk. Result: First full night without a 3AM wake-up on Day 11. Sleep latency now averaging 20 minutes. Hygiene score: 18 / 30.
W3Week 3 — Mindset Work + 20-Minute Rule
Applied the 20-minute rule on the 2 nights he still woke at 3AM. Added 5 minutes of box breathing to his nightly routine. Started challenging “I’ll be useless tomorrow” thoughts by logging his actual next-day performance — found it was rarely as bad as predicted. Result: 3AM wake-ups now 1 night/week. Sleep efficiency estimated at 79% — up from 61%. Melatonin fully stopped.
W5Week 4–5 — Consolidation & PSQI Retest
Added morning outdoor walk (10 min, 7AM) for light exposure and light exercise. Stopped eating after 8PM. Routine fully consolidated — same sequence every night without effort. Week 5 PSQI retest: Score dropped from 12 → 3. Sleep efficiency: 91%. Falling asleep in ~14 minutes. Zero 3AM wake-ups in the final 10 days. Hygiene score: 26 / 30.
Omar’s PSQI Result — Week 5
Component
What Changed
New Score
C1 — Subj. Quality
“Very good” most nights — waking refreshed consistently
0
C2 — Sleep Latency
~14 min to fall asleep — no screens, consistent bedtime signal
1
C3 — Duration
7.5 hrs actual sleep — same bed schedule, less wasted time awake
No longer drowsy at standups; sustained afternoon focus restored
1
PSQI Global Score — Week 5
3 / 21 ✅
📊 Omar’s Progress — Key Metrics
Key lesson from Omar’s case: He broke 8 sleep hygiene rules simultaneously — and fixed them one category at a time over 5 weeks. No prescription, no new supplements, no expensive gadgets. A fan, a phone moved to the hallway, and a consistent 6:30AM alarm drove a 9-point PSQI drop. The habits were free. The consistency was the hard part.
3 Sleep Hygiene Myths — Debunked
✗ Myth 1✓ Fact
“A glass of wine before bed helps you sleep better.”
Alcohol sedates — it does not produce natural sleep. It suppresses REM in the first half of the night, then causes rebound arousals in the second half as it metabolises. Net result: shorter total sleep, less deep NREM, more fragmented REM, and earlier final waking. The “nightcap” is the single most widespread and most damaging sleep hygiene myth in existence. Even one drink 2 hours before bed measurably reduces sleep quality scores.
✗ Myth 2✓ Fact
“You can catch up on sleep debt at the weekend.”
Weekend catch-up sleep partially recovers subjective sleepiness and some cognitive functions — but it does not reverse the metabolic damage (insulin resistance, inflammation markers) caused by a week of poor sleep. More critically, sleeping in on Saturday and Sunday shifts your circadian phase later, making Monday morning harder and perpetuating the following week’s sleep debt. Consistent wake time, 7 days a week, is the only evidence-based recovery strategy.
✗ Myth 3✓ Fact
“More time in bed = more sleep = better health.”
Time in bed and actual sleep are not the same thing. Spending 9–10 hours in bed while sleeping only 6 produces 67% sleep efficiency — well below the healthy 85% threshold. Excessive time in bed dilutes sleep pressure, reduces sleep depth, and trains your brain to associate bed with wakefulness. For people with insomnia, compressing time in bed (sleep restriction therapy) consistently outperforms extending it. Quality, not quantity, drives health outcomes.
🛒 Top Sleep Hygiene Products
FTC Disclosure: SmartSleepCalc earns a small commission on qualifying Amazon purchases at no extra cost to you. Every product below directly supports a specific habit in this checklist.
🌑
NICETOWN Blackout Curtains (2-Panel)
Bedroom Category — Item 1. Blocks 99% of light. Even dim streetlight through curtains suppresses melatonin. Available in 20+ colors, thermal-insulated, also reduces outside noise.
Bedroom Category — Item 3. 22 non-looping sound options. Masks unpredictable sounds that trigger REM arousals. No moving parts, runs cool, no memory of last setting.
Morning Category — Item 2. For days when outdoor light isn’t accessible. 10 min of morning light exposure anchors circadian rhythm, cuts sleep latency by 8–12 min. Safe UV-free.
Bedroom Category — Item 2. If you can’t cool the whole room, cool the bed. Precisely controlled airflow between 66–104°F. App-controlled. The most cost-effective alternative to a full AC unit.
Mind Category — Items 4 & 5. Structured gratitude + tomorrow’s task list in one 5-minute ritual. Offloads cognitive preoccupations before bed. Shown to reduce sleep onset by ~9 min (Scullin et al., 2017).
Bedroom Category — Item 1 alternative. Zero eye pressure design — unlike flat masks, cups sit over the eye socket. 100% blackout without touching eyelids. Ideal for people who can’t use blackout curtains.
Sleep hygiene is the set of behavioural and environmental practices that promote consistent, high-quality sleep. It includes habits like a fixed wake time, dark and cool bedroom, no screens before bed, and cutting caffeine by 2PM. Good sleep hygiene lowers your PSQI score and improves sleep efficiency to above 85% — the clinical threshold for healthy sleep.
Start with 3–5 habits and maintain them consistently for 14 nights before adding more. Research shows adding too many changes simultaneously makes it impossible to identify which change is working. The three highest-impact starting habits are: a fixed daily wake time, no alcohol within 3 hours of bed, and bedroom temperature at or below 67°F (19.4°C). These three alone address the leading causes of poor sleep efficiency.
Most people see measurable improvement in sleep latency and wake-after-sleep-onset within 2 weeks of consistent practice. Full sleep quality normalisation — PSQI score below 5 — typically takes 4–6 weeks. Your circadian rhythm takes approximately 7–10 days to respond to a new consistent wake time, and the bed-sleep association requires 2–3 weeks of stimulus control to strengthen. Track your PSQI score at baseline and again at 4 weeks to measure progress objectively.
Sleep hygiene alone resolves mild-to-moderate sleep problems in approximately 50–55% of cases. For chronic insomnia (3+ months, 3+ nights/week), it works best as the foundation of CBT-I — Cognitive Behavioral Therapy for Insomnia — which adds stimulus control, sleep restriction therapy, and cognitive restructuring on top. The AASM recommends CBT-I, including sleep hygiene, as first-line treatment over all sleep medications for chronic insomnia in adults.
A consistent wake time — the same time every morning, 7 days a week — is the single highest-leverage sleep hygiene habit. It anchors your circadian rhythm, regulates cortisol timing, and improves both sleep latency and sleep efficiency simultaneously by building reliable sleep pressure. Everything else in this checklist — light exposure, caffeine timing, bedroom temperature — builds more effectively on top of this foundation than without it.
Know Your Habits. Track Your Score. Sleep Better.
You now have the complete 30-habit sleep hygiene framework. Start with the Morning and Bedroom categories — just 12 habits — and check your PSQI score before and after 4 weeks. A score drop of 3+ points confirms your intervention is working. Most people who complete this checklist consistently hit the “Good Sleep” PSQI band within 30 days.
🐦 X / Twitter Share Copy
The average adult breaks 4–6 sleep hygiene rules every night without knowing it. Here’s the complete 30-habit checklist — interactive, science-backed, free: smartsleepcalc.com/sleep-hygiene-checklist #SleepHygiene #BetterSleep #Insomnia
Internal: /sleep-quality-calculator/ · /sleep-cycle-calculator/ · /why-do-i-wake-up-at-3am/
External: AASM 2023 · NSF 2025 · Morin JAMA 2009 · Scullin JEP 2017 · Haghayegh 2019
Amazon tag: thedigmag-20 | FTC: ✅ | Images: Unsplash CDN — upload to Cloudinary before publish
Next review: November 2026
Home › Sleep Science Hub › Is 7 Hours of Sleep Enough? Is 7 Hours of Sleep Enough? What Science Says for Most Adults SN Dr. Sarah Nolan, Sleep Science Advisor Medically Reviewed: April 2026 · Author Profile → E-E-A-T Verified For most healthy adults, 7 hours of sleep is the minimum recommended amount —…
Sleep Cycle Science Waking Up During a Sleep Cycle Why your alarm causes grogginess, how to fix it with cycle-aligned wake times, and how to estimate your personal cycle length if the standard 90-minute model does not fit you. The mechanism: Waking mid-cycle produces sleep inertia — impaired alertness, slowed cognition, and physical heaviness lasting…
Evidence-Graded Guide How to Get More Deep Sleep Most guides list interventions without telling you how much difference they actually make. This page estimates effect sizes from available research so you can prioritise what is worth doing. Age-adjusted expectations included. Deep sleep declines with age (Ohayon et al., 2004) — realistic targets matter more than…
🌙 Calculate My Bedtime ✕ ⚕️ Medical Disclaimer: This article is for educational purposes only and does not constitute medical advice. Consult a qualified healthcare provider for sleep concerns. 🧠 Sleep Science What Is REM Sleep?Stages, Benefits & How to Get More of It Your brain’s nightly repair window — and why most people accidentally…
Home › Sleep Science › How to Fix Your Sleep Schedule Morning sunlight within 30 minutes of waking is the single most powerful lever for resetting your circadian clock. Even 10–15 minutes outside on a cloudy day delivers 10× more light signal than indoor lighting. SN Dr. Sarah Nolan — Sleep Science Advisor Published April…
Circadian Biology — Nobel Prize Science Reference The Circadian RhythmComplete Science Guide Your body runs a precise 24-hour biological programme in every cell. When modern life forces it out of sync — through shift work, screens, or irregular schedules — the health consequences extend far beyond feeling tired. Here is the science, the evidence, and…
