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Neither zolpidem nor melatonin was successful in improving daytime sleep compared to placebo.
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Permalink Reply by RockRpsgt on
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Abstract:
Air and ground crews are often given rest opportunities at atypical times, outside of a normal entrained circadian sleep period. Due to normal human biology, this practice often leads to delayed, thus shortened, sleep as well as restless sleep. In such cases, a sleep promoting or No-Go medication may be prescribed to promote a more restorative crew rest. This study compared two doses of the hypnotic zolpidem, two doses of melatonin and placebo for their effects on daytime sleep, on nighttime cognitive performance and on mood in an operationally and militarily relevant paradigm. The participants worked all night. Subsequently, an Early Group slept from 0800-1600 and a Late Group slept from 1400-2200. The participants worked all night again. Measures included polysomnography, simple and complex cognitive task performance, vigilance, subjective reports, salivary melatonin, and vital signs. Neither zolpidem nor melatonin was successful in improving daytime sleep compared to placebo. Participants slept longer under the medicated treatments, but it was not statistically significant. Sleep inertia was deepened by the use of zolpidem and may prolong degraded performance, sleepiness and fatigue. In this study, there were no advantages for morning or afternoon sleepers for nighttime alertness, mood or performance. The Foret & Lantin (1972) findings of 34 hours of sleep during the day do not appear to hold for sleep-deprived people sleeping under ideal conditions. For two consecutive work nights, ideal daytime sleeping conditions appear to provide nearly as much sleep as a sleep aid and without any risk to nighttime performance or side effects.
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Permalink Reply by sleepycarol on
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How many sleep centers conduct day-time sleep studies?
It would appear that there would be a demand for this (although slight) since so many work the graveyard shift if they could do the sleep test at their normal sleeping time wouldn't the patterns be more significant than having them adjust their sleep schedule to meet the testing requirements?
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All of the labs that I have worked for will do day studies. All you have to do is request it. Most shift workers can easily switch to nights. it is going back to days that becomes a problem. I personally feel better after a night or 2 of normal sleep every now and then. I call it getting my moon sleep.
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I know my sister always liked sleeping during the day and liked the late shifts when she worked.
My third son is now working at Wal-Mart and is night customer service manager. He hates the hours he works since it has played havoc on his sleep. He spent four years in the Marine Corp and much prefers their schedule -- as hectic as that might be.
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