don't you want to sleep?

可以这样表达
还可以：don't you wanna sleep
don't you wanna go to bed
don't wanna go to sleep
wanna = want to 非常的地道口语化,而且被用得很广泛
还有更地道的表达：
hit the hey ,hit the bed
比如I gotta hit the bed,我得睡觉了,gotta也是经常用到的口语句子,类似于get to
还有用于晚安临别的话：
good night ,sweet dreams等