Sleep may undergo a disruption.Logical formLearned from22 sentences. Sleep can be peaceful.Logical formLearned from22 sentences. An improvement can be in sleep.Logical formLearned from22 sentences. Persons may die in sleep.Logical formLearned from22 sentences. A person may drift into sleep.Logical formLearned from22 sentences. Sleep can be a factor.Logical formLearned from22 sentences. A person may wake_up from a deep sleep.Logical formLearned from22 sentences. Sleep can be satisfying.Logical formLearned from22 sentences. (Sleep disorders) may undergo a classification.Logical formLearned from22 sentences. A (sleep quality) may pertain-to a person.Logical formLearned from22 sentences. A function can be constituted-of-or-filled-with sleep.Logical formLearned from22 sentences. A person may wake from sleep.Logical formLearned from22 sentences. Activity can be during sleep.Logical formLearned from22 sentences. Persons may drift into sleep.Logical formLearned from22 sentences. (Sleep medication) can be for insomniacs.Logical formLearned from22 sentences.