Persons can be with (sleep phase disorder).Logical formLearned from18 sentences. Sleep can be sleepy.Logical formLearned from18 sentences. A (sleep cycle) may pertain-to a male.Logical formLearned from18 sentences. A hope can be constituted-of-or-filled-with sleep.Logical formLearned from18 sentences. An issue may pertain-to a (journal sleep).Logical formLearned from18 sentences. A (bed-nautilus sleep system-signature series mattress-) may pertain-to an airline.Logical formLearned from18 sentences. A link can be between sleep.Logical formLearned from18 sentences. A person can be in a (sleep cycle).Logical formLearned from18 sentences. Sleep may undergo a use.Logical formLearned from18 sentences. Men can be with (sleep apnea).Logical formLearned from18 sentences. (Sleep disorders) can be in children.Logical formLearned from18 sentences. Treatment can be with (sleep therapy).Logical formLearned from18 sentences. Participants can be with (sleep apnea).Logical formLearned from18 sentences. Sleep can be frozen.Logical formLearned from18 sentences. Students may get sleep.Logical formLearned from18 sentences.