Keywords: sleep, sleeping
As a Noun
1. The natural state of rest in which your eyes are closed and your mind and body are inactive and unconscious, usually for several hours every night. English = sleep, sleeping.
2. A period of sleeping. English = sleep.
As a Verb or Adjective
1. To close your eyes in order to rest your mind and body. After some time you become inactive and unconscious for a period of minutes or hours. English = sleep, fall asleep, go to sleep.