I am a meditator. After sleeping for a few days, I was exhausted. What should be done to prevent this from happening again?

This is because of "leakage". I suggest to search the video of "Seven Days of Southern Zen" on the Internet. It's a video of Nan, which specifically talks about how not to miss the essence of practice. Let me give you an excerpt:

When I knew the news (editor's note: when my brain was alert and my heart was aroused), where! Pay attention, young monk. Pay more attention. As for women, when the spring is full, we should be more vigilant and alert. What should they do when they wake up? Touch your head with your hand. That's how you touch your head. Did you get a look at him? (I can't remember the action-editor) Like a monkey scratching its head, touching the back of the head with these two thumbs is to stimulate the drooping nerves of the brain. It's comfortable to pinch it around. Look, you can try it now, from the temple to here. Pinch the bag. You are sober. You can do it at ordinary times, which is one of the earliest wonderful ways to replenish your brain. Here! Pinch his head; (Action-Editor) After shaking, turn your eyes as many times as you want, and turn around. This eye will be good for myopia and presbyopia. After turning, close your eyes and turn your eyes to look at the back of your head to stimulate the pituitary gland; Inhale through your nose, gently! (Sometimes someone breathes loudly behind the teacher-editor) I'm just pretending. I won't be so loud. How did you know I was breathing? Isn't it? You can't learn to inhale loudly, inhale gently through your nose, inhale a few times in your lower abdomen, wipe your head after inhaling, and then meditate and empty. Nature can nourish the brain and live forever. It's such a small road.