noun 1 as in bed a natural periodic loss of consciousness during which the body restores itself neither of them has been getting much sleep since the baby was born Synonyms & Similar Words Relevance bed slumber napping slumbering resting rest nap dozing snoozing catnapping shut-eye dreaming doze repose catnap drowse snooze siesta zs oversleeping

Oct 15, 2016 · Difficulty falling asleep at night Waking up during the night Waking up too early Not feeling well-rested after a night's sleep Daytime tiredness or sleepiness Irritability, depression or anxiety Difficulty paying attention, focusing on tasks or remembering Increased errors or accidents Ongoing worries about sleep When to see a doctor

Jul 21, 2017 · Sleepwalking — also known as somnambulism — involves getting up and walking around while in a state of sleep. More common in children than adults, sleepwalking is usually outgrown by the teen years. Isolated incidents of sleepwalking often don't signal any serious problems or require treatment.

Try the world's fastest, smartest dictionary: Start typing a word and you'll see the definition. Unlike most online dictionaries, we want you to find your word's meaning quickly. ... sleep deprivation a form of psychological torture inflicted by depriving the victim of sleep. sleeping the state of being asleep. self-giving willing to deprive ...

Jul 23, 2022 · noun : a drug and especially a barbiturate that is taken as a tablet or capsule to induce sleep Example Sentences Recent Examples on the Web Plus, using melatonin as a …

SLEEP meaning: 1 : to rest your mind and body by closing your eyes and becoming unconscious sometimes used figuratively; 2 : to have enough space for (a specified number of people) to sleep in it The Britannica Dictionary mobile search

Apr 29, 2022 · Sleep is a complex process that affects our entire body. When we sleep, we cycle through a series of sleep stages, from light sleep (stages 1 and 2) to deep sleep (stage 3) and then rapid eye movement (REM) sleep.

Jan 14, 2023 · Overview. Narcolepsy is a sleep disorder that makes people very drowsy during the day. People with narcolepsy find it hard to stay awake for long periods of time. They fall asleep suddenly. This can cause serious problems in their daily routine. Sometimes narcolepsy also causes a sudden loss of muscle tone, known as cataplexy (KAT-uh-plek-see).

: a state of sleep that recurs cyclically with non-REM sleep several times during a normal period of sleep, is characterized especially by greatly depressed muscle tone, dreaming with vivid imagery, rapid eye movements, and increased neuronal activity in certain brain regions (such as the pons ), and typically comprises up to 25% of time spent in …