(n.) A condition of the nervous system in which an individual during sleep performs actions appropriate to the waking state; a state of sleep in which some of the senses and voluntary powers are partially awake; noctambulism.

amnesia beauty sleep beddy-bye bedtime blanket drill bye-bye catalepsy cataplexy catatonic stupor daydreaming daze doze dream state dreamland drowse fitful sleep fugue fugue state hibernation hypnotic trance land of Nod light sleep night-wandering nightwalking noctambulation noctambulism noctivagation repose reverie shut-eye silken repose sleep sleepland sleepwalk sleepwalking slumber slumberland snoozle somniloquy somnus stupor trance unconsciousness winter sleep