It not late depends on you and the day bc if you have school or work then its way to late to sleep
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I wouldn't be able to sleep after 5am. If I wa awake all night long, if I have been up 24hrs I won't get sleepy until it's 5am the next day, my and my insomnia fits worse when I do that lol.
I'm not able to get a good night sleep. Even 7hrs to me i consider that a good sleep less or more would make me tired