sleep

• Hit the sack

  To go to bed or fall asleep, often indicating a desire for rest after being tired.

• Forty winks

  A short nap or brief period of sleep.

• Power nap

  A short, restorative sleep taken during the day to quickly improve alertness and performance.

• Quick kip

  A brief and informal period of sleep or a short nap.

• Dozing off

  To fall lightly asleep, often unintentionally and for a short period.

• Brief slumber

  A short period of sleep or rest.

• Staying up all night

  To remain awake and active throughout the entire night, from evening until morning, without sleeping.