It's easy to let our sleep schedules slip after a weekend. Whether it's staying up late to watch something like SNL or sleeping in for breakfast in bed, weekends and days off often present us with easy opportunities to mess up our sleep schedules. But is having a regimented sleep schedule that important, really? And what happens if we mess it up? And how long do we really need to sleep each night? The answers to these questions vary from person to person, but the National Institute of Heath has some good guidelines worth following. Head over to the NIH to see how much sleep you should be getting, and why getting that amount is so important for your overall health and wellness.