Here are some quick sleep tips (tune in next time for exercise):
Sleep
1) Quantity, quality, and consistency. These are the aspects of sleep to pay attention to if you feel like you aren't sleeping "enough". The first one is obvious, you need a certain amount of sleep and if you are deprived, you'll feel tired. The second points to the fact that it's not just spending time in bed that's important but getting good quality sleep. Paying attention to the sleep environment (comfort, noise level, temperature) can help ensure good quality sleep. Consistency means having a relatively stable bedtime and wake-up time. Our brains are used to habits and we get thrown off when we don't have a stable routine (think jet lag).
2) Don't ignore things the effects of things that can interfere with sleep. Again, this one is pretty simple but people manage to overlook it. I'm talking about things like caffeine, food, alcohol, and other substances that can make you groggy or too peppy to sleep. Most people know that caffeine makes you stay awake but will often overlook their post-dinner espresso as a possible reason they can't sleep.
3) Sleep helps consolidate memory. There is a good reason to read before bedtime. There is data that shows that memories can consolidate while we're sleeping. We might assume that it is better to study early in the morning while we are fresh but in terms of retaining information, it is often better to study new material at night and then sleep on it. (Remember, this doesn't justify the all-nighter because then you're not actually getting the sleep)