There's a reason why waking up after a great night's sleep feels so good. It's because it IS good. Getting enough good sleep is key to a quality life. If you're an adult and you're not getting between seven and nine hours of sleep most nights, as recommended by the National Sleep Foundation, you might consider making some lifestyle changes so that you do.
For one thing, you'll be improving your overall health. The American Heart Association released a statement saying that sleep patterns that don't fall into the seven to nine hours per night range appear to be linked to cardiovascular risks, diabetes, obesity, high blood pressure and weakened arteries, especially in women.