Anyone offering a single, specific "best" way to rest is likely to be committing the typical mind fallacy. For example, there are people - extroverts - who "unwind" after a work week by going out to clubs. As an introvert, I have a knee-jerk inclination to suspect such people of genuine insanity, because such an activity would have no relaxing or energy-restoring effect for me. Of course, they are no more insane than I am, just psychologically different, but those differences can have a big impact.

As wgd suggests, you can experiment to figure out what is most relaxing for you. Another possibility: if you could provide more details about your own psychology, people who identify with those details could offer their preferred methods. Without more information, I think we will just be other-optimizing.