Random Sleep Facts

    42 facts tagged with Sleep Facts

    You burn more calories sleeping than you do watching television.
    348
    47% of people have a nightmare at least once a month.
    186
    Lack of water is the #1 trigger of daytime fatigue.
    148
    Hypnic Jerk
    Hypnic Jerk
    When you wake up with a jolt, it's called a Hypnic Jerk. This usually happens during the lightest stages of sleep, and can happen as a natural reaction when you fall asleep in a car or airplane.
    35
    Those who get out of bed by 7am are more likely to be thinner and happier.
    20
    Knocker-Up
    Knocker-Up
    Until the 1920s, there was a profession called 'knocker-up', which involved going from client to client and tapping on their windows (or banging on their doors) with long sticks until they woke up.
    46
    Bats sleep 18-20 hours per day.
    5
    Cows can sleep standing up, but they can only dream lying down.
    745