Synonyms and related words :
beauty sleep, beddy-bye, bedtime, blanket drill, bye-bye, doze, dreamland, drowse, fitful sleep, hibernation, land of Nod, light sleep, repose, shut-eye, silken repose, sleep, sleepland, sleepwalking, slumber, snoozle, somnambulism, somniloquy, somnus, unconsciousness, winter sleep