I want to go to bed early tonight 我今天要早点儿睡觉。

今天的几个句子是有关就寝的：1.It's only 10 o'clock. 现在才十点多。2. Don't you usually go to bed at 12? 你平常不都是12点才睡吗？3. I don't want to be late. 我怕起不来。