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  • Title: Athletes underestimate sleep quantity during daytime nap opportunities.
    Author: Lastella M, Roach GD, Miller DJ, Versey N, Romyn G, Sargent C.
    Journal: Chronobiol Int; 2018 Jun; 35(6):869-871. PubMed ID: 29842816.
    Abstract:
    This study examined the difference between athletes' self-reported and objective sleep durations during two nap opportunities. Twelve well-trained male soccer players' sleep durations were assessed using polysomnography and a self-report question during a 60- and 120-min nap opportunity. Participants underestimated sleep compared to objective sleep assessments for both the 60-min nap opportunity (p = 0.004) and 120-min nap opportunity (p = 0.001). Soccer players underestimated their sleep duration by approximately 10 min per hour of nap opportunity. It is yet to be determined if athletes are likely to underestimate sleep duration during their main nighttime sleep period.
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