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Subjective measures of sleep are obtained by means of a sleep journal.A sleep journal kept for approximately 2 weeks may help determine the extent of the sleep disturbance.Patients should record the total hours slept per night , frequency of nighttime awakenings , and level of restfulness provided after sleep.Further objective history might be available if patients have a sleep partner who keeps a 2-week journal or provides history.Objective measures of sleep may be obtained using EEG monitoring or polysomnography.Monitored polysomnography is the criterion standard for evaluating measures of sleep . The results , while disturbing , may help serve as a guide for programs designed to combat animal neglect and cruelty . Things like meditation or relaxation may help you lower stress by quieting your mind . There are critical questions that work of this type may help answer , researchers say . In short , by performing additional statistical analyses the authors may discover other interesting relationships that may help them to refine their findings and to produce multivariate models .