Sleep can be with axes.Logical formLearned from9 sentences. Sleep can be disruptive.Logical formLearned from8 sentences. An end may pertain-to a (sleep cycle).Logical formLearned from8 sentences. Sleep can be successful.Logical formLearned from8 sentences. A (sleep debt) can be chronic.Logical formLearned from8 sentences. (Sleep centers) can be accredited.Logical formLearned from8 sentences. Sleep may undergo disruptions.Logical formLearned from8 sentences. A person may get_by on some hours of sleep.Logical formLearned from8 sentences. Characters may be typed during sleep.Logical formLearned from8 sentences. A (sleep aid) can be mild.Logical formLearned from8 sentences. Sleep may be troubled.Logical formLearned from8 sentences. Persons can be with a (sleep disorder).Logical formLearned from8 sentences. A history can be constituted-of-or-filled-with (sleep apnea).Logical formLearned from8 sentences. A man can be in sleep.Logical formLearned from8 sentences. Sleep may manifest heat.Logical formLearned from8 sentences.