noun:a natural and regularly recurring state of rest for the mind and body, characterized by altered consciousness, reduced sensory activity, and inactivity of nearly all voluntary muscles
A good night's sleep can help a headache.
verb:to be in a state of sleep; to rest with the eyes closed and the mind and body inactive
Bed is a place where we sleep.
verb:to be inactive, dormant, or at rest
The volcano has slept for centuries.
