Travel sleep · unfamiliar environment Can’t Sleep in Hotels? The First-Night Effect Explained Tossing and turning on your first night in a hotel does not always mean you have insomnia. Sleep researchers have studied the “first-night effect” for decades: sleep on an initial night in a new place is often lighter, shorter, or more broken…
Morning symptom · safety-aware guide Why Do I Wake Up Shaking or Trembling? Waking up shaky can mean several different things. You may be shivering because you are cold, experiencing a visible tremor, feeling an internal vibration that nobody else can see, or having a brief stress response as you wake. Repeated shaking, daytime tremor,…
Nocturnal groaning · sleep-related breathing sound Catathrenia: Why Do You Groan or Moan in Your Sleep? If someone says you groan, moan, hum, or make a long strange sound while sleeping, catathrenia is one possible explanation. The most useful clue is not simply how the sound sounds. It is when the sound happens during breathing…
Couch vs bed sleep · educational guide Why Can I Fall Asleep on the Couch but Not in Bed? If you fall asleep easily on the couch but become wide awake after moving to bed, look at what changes during the transition. Your level of sleepiness, bedtime routine, light exposure, thoughts about sleep, bedroom environment,…
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