Taking a few moments to focus on your breath may be just what you need to unwind at the end of the day. "I recommend listening to relaxing music that incorporates binaural beats," said Hidary, who has created these tracks for MindTravel. "Through a process called entrainment, binaural beats synchronize your brain waves to the state in which deeper, more restorative sleep can occur." (Note that people with certain conditions, such as a history of seizures, should talk to their doctor first.)