A (sleep ..) may pertain-to a night.Logical formLearned from9 sentences. Persons may want sleep.Logical formLearned from9 sentences. Sleep may be needed.Logical formLearned from9 sentences. (Sleep deprivation) may be subjected to lights.Logical formLearned from9 sentences. Some persons may get sleep.Logical formLearned from9 sentences. A lack of sleep may be catch_uped with a person.Logical formLearned from9 sentences. Sleep can be shared.Logical formLearned from9 sentences. A male can be ready for sleep.Logical formLearned from9 sentences. A person may die of (sleep deprivation).Logical formLearned from9 sentences. Times can be in sleep.Logical formLearned from9 sentences. A (radio station) may be runed in sleep.Logical formLearned from9 sentences. A (sleep drive) can be increased.Logical formLearned from9 sentences. A male may get a wink of sleep.Logical formLearned from9 sentences. Information can be on (sleep disorders).Logical formLearned from9 sentences. Sleep may sound.Logical formLearned from9 sentences.