And what ends up happening -- you might have days like this where you wake up at eight or seven in the morning, or whenever you get up, and you're like, "I didn't sleep very well.
结果就是，有的时候，你可能有几天 在早上8点就醒来，有时是7点， 或者是当你起来的时候， 你会觉得一夜没睡好。