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In a multi-crew aircraft taking a nap in the cockpit..
  • A
    can be used to reduce sleep depth.
  • B
    is as effective as horizontal rest.
  • C
    should last between 15 to 40 minutes.
  • D
    should last longer than 40 minutes in order to ensure that deep sleep stages are achieved.

NAPS

A nap is a short period of sleep taken at any hour. The time of day, the duration of the nap and the sleep credit/deficit of the individual will determine through which sleep stages the individual will pass. The restorative properties of naps will vary from one individual to another.
  • With the increase in extended flight times there is debate about allowing a crew member to take 20 to 40 minute naps in the seat in an effort to keep him/her fresh. Pilots should be aware that after napping it may take some minutes to collect one's thoughts and they will have slow responses and reactions for a few minutes after being roused.

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