After a hectic day, the best thing you can do is to get a beneficial amount of sleep. There are always new studies appearing that prove how important sleep really is to a person, improving everything from your energy and mood to your metabolism. However, it may not be quite as easy to get that much-needed sleep, especially the deep sleep that can make all the difference.
English: A Sleeping moon in a cap. (Photo credit: Wikipedia)
It might be a good idea to try a few apps to help you with your sleep.