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1. In a state of sleep
   - asleep
    
2. Being quiet, still or inactive
   - quiescent

1. The state of being asleep
    
2. Quiet and inactive restfulness
   - quiescence, quiescency, dormancy
    
3. The suspension of consciousness and decrease in metabolic rate

1. Be asleep
   - slumber, catch some Z's [N. Amer, informal]
    
2. Be able to accommodate for sleeping
   "This tent sleeps six people"

Derived forms: sleepings

See also: at rest, dead to the world [informal], dopey, dopy, dormant, dozy, drowsing, drowsy, fast asleep, hibernating, hypnoid, inactive, incognisant [Brit], incognizant, live in, sleep late, sleep out, sleepy, sleepy-eyed, sleepyheaded, slumberous, slumbery [archaic], slumbrous, somnolent, sound asleep, torpid, unawakened, unaware, unconscious

Type of: accommodate, activity, admit, bodily function, bodily process, body process, ease, hold, relaxation, repose, rest, shuteye [informal], shut-eye [informal], sleep, slumber

Antonym: wake, waking

Encyclopedia: Sleeping