Can't sleep? 3 habits to start today for better rest tonight, expert reveals

On the left, a woman wearing pajamas sits in her bedroom and works on her laptop. In the middle, a member of the Tom's Guide sleep team enjots a good night's rest on a comfortable mattress. On the right, a woman lies in her bed and writes notes in a notebook.

Good sleep can reduce stress, improve alertness and even boost your mood, however, as sleep expert and clinical psychologist Dr. Leah Kaylor explains, getting good rest requires some work.

"If sleep could be bottled and prescribed it would be hailed as the most powerful performance enhancer... on the market," says Dr. Kaylor.