Synonyms and related words :
beauty sleep, beddy-bye, bedtime, blanket drill, bye-bye, dormancy, doze, dreamland, drowse, fitful sleep, immobility, inaction, inactiveness, inactivity, inertia, land of Nod, light sleep, lull, motionlessness, quiescence, repose, shut-eye, silken repose, sleep, sleepland, sleepwalking, slumber, slumberland, snoozle, somnambulism, somniloquy, somnus, suspension, unconsciousness, underactivity, winter sleep