A brief afternoon nap following nocturnal sleep restriction: which nap duration is most recuperative?

@article{Brooks2006ABA,
  title={A brief afternoon nap following nocturnal sleep restriction: which nap duration is most recuperative?},
  author={Amber Brooks and Leon Lack},
  journal={Sleep},
  year={2006},
  volume={29 6},
  pages={
          831-40
        }
}
STUDY OBJECTIVES The purposes of this study were to compare the benefits of different length naps relative to no nap and to analyze the electroencephalographic elements that may account for the benefits. DESIGN A repeated-measures design included 5 experimental conditions: a no-nap control and naps of precisely 5, 10, 20, and 30 minutes of sleep. SETTING Nocturnal sleep restricted to about 5 hours in participants' homes was followed by afternoon naps at 3:00 PM and 3 hours of postnap… 

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References

SHOWING 1-10 OF 28 REFERENCES
The short-term benefits of brief and long naps following nocturnal sleep restriction.
TLDR
It is concluded that the detrimental effects of sleep restriction were more rapidly and significantly ameliorated, at least within the hour following the nap, by a 10-minute afternoon nap.
Recuperative power of a short daytime nap with or without stage 2 sleep.
TLDR
A daytime short nap containing 3 minutes of stage 2 sleep has recuperative effects, whereas these effects are limited following only stage 1 sleep.
The recuperative value of brief and ultra‐brief naps on alertness and cognitive performance
TLDR
There were no measurable improvements for the 30‐ and 90‐s nap conditions relative to no nap, which suggests that the mechanism underlying the benefits of brief naps does not appear to be the onset of stage 1 sleep.
The effects of a 20-min nap at noon on sleepiness, performance and EEG activity.
  • M. Hayashi, S. Ito, T. Hori
  • Psychology, Medicine
    International journal of psychophysiology : official journal of the International Organization of Psychophysiology
  • 1999
TLDR
The results suggest that a 20-min nap at noon had partial positive effects on the maintenance of the daytime arousal level and improved volition and the self-rating of task performance.
The effects of a short daytime nap after restricted night sleep.
TLDR
It was concluded that the short nap had a clear positive effect on alertness and subjective sleepiness decreased significantly, compared to baseline.
The effects of a 20 min nap in the mid-afternoon on mood, performance and EEG activity
TLDR
The results suggest that a short 20 min nap in the mid-afternoon had positive effects upon the maintenance of the daytime vigilance level and the subjective sleepiness, performance level and self-confidence of their task performance.
The alerting effects of naps in sleep-deprived subjects.
TLDR
Increased alertness was not strongly related to the sleep stage composition of the naps, the best predictor being minutes of slow wave sleep, and was not detected until the second latency test 4 hrs after napping.
Maintenance of alertness and performance by a brief nap after lunch under prior sleep deficit.
TLDR
It is suggested that under prior sleep deficit, a 15-min nap during post-lunch rest maintains subsequent alertness, performance, and autonomic function following a short sleep the preceding night, particularly in the mid-afternoon.
The alerting effects of short and long naps in narcoleptic, sleep deprived, and alert individuals.
TLDR
Results show that narcoleptic patients benefit from a longer nap but that these benefits are short-lived, and sleep deprived subjects were shown to have comparable levels of sleepiness on the modified MSLT.
The alerting effects of caffeine, bright light and face washing after a short daytime nap
TLDR
The effects of a short nap against mid-afternoon sleepiness could be enhanced by combining caffeine intake, exposure to bright light, or face washing.
...
1
2
3
...