A midday nap can enhance alertness, mood, memory, and reduce stress but if you nap too long or too late in the day it can mess up your sleep!Nap tips 👇The best nap length for adults is about 20 minutes and no longer than 30 minutes. Sleeping for 20 minutes allows the napper to get a bit of light sleep to boost alertness without entering into deep sleep. Waking up from deep sleep can cause grogginess and actually worsen sleepiness. Experts typically recommend that adults take naps eight or more