Sleep!! It’s crucial to good health!!
It helps recovery from activity, focus on tasks, just about everything. As long as it’s GOOD sleep which is another conversation. Average required sleep for adults ranges between 6 to 8 hrs, depending on the individual, and waking in the middle has adverse affects on hormone release. Here’s Arianna Huffington of The Huffington Post with a little insight on sleep and success in whatever you’re trying to achieve.