A power nap is a short mid-day nap that can provide renewed energy. Unlike traditional mid-day naps that can last an hour or more, a power nap is typically just 20 minutes. It aims to help the body go through different stages of sleep, from light sleep to deep REM sleep. The recommended duration for a power nap is 20 minutes since it avoids deep sleep and its negative effects. It may seem counterintuitive, but drinking a cup of coffee before taking a power nap has been shown to be beneficial. Research has shown that power naps can improve alertness and brain function. In contrast, not getting enough sleep has been proven to be detrimental to the brain. Both children and older individuals are used to and good at taking power naps, and adults can benefit from following their example. The optimal length for a power nap is around 20 minutes, according to the American Sleep Foundation and Mayo Clinic. This length can provide a boost in energy and improve memory.