Open English Wordnet
Nouns
(n)sleep, slumbera natural and periodic state of rest during which consciousness of the world is suspended“he didn't get enough sleep last night”,
“calm as a child in dreamless slumber” (n)sleep, sopora torpid state resembling deep sleep (n)sleep, napa period of time spent sleeping“he felt better after a little sleep”,
“there wasn't time for a nap” (n)rest, eternal rest, sleep, eternal sleep, quietuseuphemisms for death (based on an analogy between lying in a bed and in a tomb)“she was laid to rest beside her husband”,
“they had to put their family pet to sleep” Verbs
(v)sleepbe able to accommodate for sleeping“This tent sleeps six people”