What does sleep mean in English? How to make a sentence for sleep?

1. sleep, v. sleep; sleep; fall asleep; available for...sleeping; available for...accommodation; n. sleep; sleep; sleep time; a nap; eye droppings;

2. [Example] I sleep with the window open unless its really cold. If the weather is not very cold, I always sleep with the window open.

3. [Others] Third person singular: sleeps Present participle: sleeping Past tense: sleep Past participle: sleep