We know that naps are a great way to relieve stress while boosting mood and productivity. And new research suggests that a little midday shut-eye can bring a dramatic improvement in our ability to retain information. According to the Huffington Post, Researchers found that an hour long nap improves memory performance fivefold. For the study the researchers tested the memory of 41 volunteers who had been asked to remember specific words and word pairs. Then, half of the participants took an hour long nap while the others watched a DVD. In addition to revealing that those who enjoyed a little snooze performed five times as well as those who hadn’t, the results showed that the volunteers’ post-nap memory was just as good as it had been before the nap.