1. In a state of sleep
   "were all sleeping when the phone rang";
   - asleep
    
2. Being quiet, still or inactive
   "The sleeping giant of the economy began to stir";
   - quiescent

1. The state of being asleep
   "Her peaceful sleeping was interrupted by a loud thunderclap"

1. Be asleep
   "I need to sleep before the big meeting tomorrow";
   - 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, sleepy, sleepy-eyed, sleepyheaded, slumberous, slumbery [archaic], slumbrous, somnolent, sound asleep, torpid, unawakened, unaware, unconscious

Type of: accommodate, admit, hold, rest, shuteye [informal], shut-eye [informal], sleep, slumber

Antonym: waking

Encyclopedia: Sleeping