You left the light on. 你一直没关灯啊。
You shouldn't have stayed up so late. 你不应该那么晚才睡。
Did you stay up late last night? 昨晚你熬夜了?
When did you fall asleep? 你几点睡着的?
When did you go to bed last night? 你昨晚几点睡的?
I'm not sure. 我也说不好。
I stayed up the whole night. 我一夜没睡着。
I didn't fall asleep until five o'clock. 我五点才睡着。
I'm a night person. 我是个夜猫子。
I never get up early. 我从来没有早起过。
I'm not a morning person. 我不是早起的人。