in or into a state of sleep

He fell asleep quickly.

into a dormant or inactive state; to rest

Their anxieties were put asleep.

into the state of death.

sleeping

He is asleep.

dormant; inactive.

(of the foot, hand, leg, etc.) numb.

dead.

adjective

attentive , awake , conscious

adjective

catching some zzz’s , comatose , conked , crashed , dormant , dozing , dreaming , flaked out , getting shut-eye , hibernating , inactive , in dreamland , inert , in repose , napping , on the kip , out * , out cold * , out like a light , out of it , reposing , resting , sacked out , sleeping , slumbering , snoozing , snoring , somnolent , taking forty winks , unawake , insensible , insensitive , numb , unfeeling , deceased , defunct , departed , extinct , gone , late , lifeless , abed , dead , hypnotic , idle , latent , lethargic , motionless , numbed , quiescent , quiet , somniferous , torpid , unaware , unconscious