sleep

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 humans and other mammals undergoes a characteristic cycle of brain-wave activity that includes intervals of dreaming.

A period of this form of rest.

A state of inactivity resembling or suggesting sleep; unconsciousness, dormancy, hibernation, or death.

A state in which a computer shuts off or reduces power to its peripherals (such as the display or memory) in order to save energy during periods of inactivity.

The folding together of leaflets or petals at night or in the absence of light.

A crust of dried tears or mucus normally forming around the inner rim of the eye during sleep.

To be in the state of sleep or to fall asleep.

To be in a condition resembling sleep.

To pass or get rid of by sleeping.