Trial reportJournal of sleep research2026
The Influence of 25- and 90-Min Afternoon Nap Opportunities on Subsequent Nighttime Sleep in Student Athletes.
Trial report in Journal of sleep research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- The Influence of 25- and 90-Min Afternoon Nap Opportunities on Subsequent Nighttime Sleep in Student Athletes.Journal of sleep research · 2026Trial
- Circadian Rhythm and Sleep Disturbances in Young Adult Athletes: A Review About Risk Factors, Consequences, and Interventions.Brain sciences · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
While daytime napping could support recovery in athletes, poorly timed or prolonged naps may interfere with nighttime sleep. Therefore, this study aimed to explore the effect of two different, well-timed nap opportunity durations, 25 and 90 min, on subsequent objectively measured nighttime sleep in student athletes. Fourteen student athletes (7 females, 7 males; age: 23 ± 2 years) completed three in-lab conditions using a randomised, counterbalanced, crossover design: no nap (NN), a 25-min nap opportunity (N25, 14:35-15:00) and a 90-min nap opportunity (N90, 13:30-15:00). Nighttime sleep following each condition was assessed at home via wrist actigraphy measuring bedtime, wake time, total sleep time, time in bed, wake after sleep onset (WASO) and sleep stages. Neither N25 nor N90 opportunity negatively affected the following night's sleep compared to the NN condition, including bedtime, wake time, WASO, total sleep time, light sleep, deep sleep and rapid eye movement (REM) sleep (p > 0.05 for all). Mean total sleep time was 7 h 13 min after NN, 7 h 5 min after N25 and 7 h 1 min after N90. In student athletes, afternoon nap opportunities of either 25 or 90 min, when ending at 15:00, did not disrupt subsequent nighttime sleep. These findings suggest that a strategically timed early afternoon nap may be a viable recovery option for this population. While individual differences in sleep need and academic demands should be considered, these results highlight the potential of well-timed naps to support athlete recovery. Future research is needed to determine whether these effects generalise to other populations or nap timings.
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Registered trials
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