In the past two months, I slept an average of just over 6 hours a day. Although I don’t sleep much, I have a clean diet, regular aerobics, and don’t stay up late, so my energy has been stable and my condition is good. I gave myself a holiday this weekend, slept for 12 hours, and got 3 hours of sun. The result was much better than expected. It’s not just that I have more energy, but that I feel more relaxed and my mood is more relaxed.