Oversleeping?

[Afonso]

I go to bed @ 21:30 and wake up @ 7:30 (with alarm clock, otherwise 8:00 or 8:30).

Before setting this sleeping schedule, I used to go to sleep at mid-night or so, but felt very tired the following day. It's actually annoying because I feel tired too quickly, and if I don't go to bed very early, I won't have any energy left the next day and be too sleepy.

I do a lot of exercise, and don't eat fast-food nor high-sugar foods.

I want to make more time to meditate, self-actualize, book reading, research, etc.

How can I sleep less without diminishing my energy?

Thanks! 

[123456789]

Ever heard about lifestyle minimalism?