why don't you sleep 正确吧?

1. 正确
2. 是不是问人睡过了没? Have you slept?
你入睡了? Are you asleep?

为什么你还不睡觉? 既然是对现在状态的提问``就该是
why are you still awake ?
你睡觉了么? have you been sleeping ?

1. 句子正确
2。 Are you off to bed?
Are you still awake?

1.正确.

2.Are you asleep?

1,是正确的..
2, Do you sleep?