Previously, we found that a 1.5 hour afternoon nap could improve performance in sleep-deprived adolescents. Interestingly, we also found that this split sleep schedule benefits learning after a nap opportunity without impairing morning learning, despite less sleep the night before. While not replacing adequate nocturnal sleep, a split sleep schedule may be beneficial for chronically sleep restricted learners.

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In 2019, NFS5 aimed to uncover whether napping is still beneficial when participants are getting enough sleep overall, but apportioning the total amount of sleep between daytime naps and nocturnal sleep.

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Publications:

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Cognitive effects of split and continuous sleep schedules in adolescents differ according to total sleep opportunity

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Memory performance following napping in habitual and non-habitual nappers

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Splitting sleep between the night and a daytime nap reduces homeostatic sleep pressure and enhances long-term memory

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Multi-night validation of a sleep tracking ring in adolescents compared with a research actigraph and polysomnography

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Staying vigilant during recurrent sleep restriction: dose-response effects of time-in-bed and benefits of daytime napping

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A sleep schedule incorporating naps benefits the transformation of hierarchical knowledge

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Staying vigilant during recurrent sleep restriction: dose-response effects of time-in-bed and benefits of daytime napping

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Neurobehavioral functions during recurrent periods of sleep restriction: Effects of intra-individual variability in sleep duration.

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Bedtime procrastination and chronotype differentially predict adolescent sleep on school nights and non-school nights

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Bidirectional associations between the duration and timing of nocturnal sleep and daytime naps in adolescents differ from weekdays to weekends