sleep (sleep) n. 1)A natural,..
1)A natural, periodic state of rest for the mind and body,
in which the eyes usually close and consciousness is
completely or partially lost, so that there is a decrease
in bodily movement and responsiveness to external stimuli.
During sleep the brain in human beings and other mammals
undergoes a characteristic cycle of brain-wave activity
that includes intervals of dreaming.
2)A period of this form of rest.
3)A state of inactivity resembling or suggesting sleep,
unconsciousness, dormancy, hibernation, or death.
Guess what my body needs now?