Brief naps or non-sleep deep rest protocols performed some hours after learning can enhance learning and memory.

“While technically we can’t replace lost sleep, a 10-90min nap or 10-30min NSDR (non-sleep deep rest) protocol can significantly restore key aspects of cognition & physical performance.”

“A 10-20min nap or NSDR (Non-Sleep-Deep-Rest) have both been shown to replenish physical energy & increase cognitive function.”

“And it is also true, and I've mentioned these results earlier that two papers were published in Cell Reports, Cell Press journal, excellent journal over the last few years showing that brief naps of about 20 up to 90 minutes in some period of time after an attempt to learn can enhance the rate of learning and memory.”