Sleeping with hair up?

Question

why is sleeping with your hair in a bun/ponytail bad for it? just wondering. thanks!!!

Answer 1

well when you do that, it creates lumps on your head. and it pulls your hair. i do it anyways.. but not tight. cuz i have alot of har.  

Answer 2

i think it weakens your hair and makes it break more easy also whenever i sleep with mine up it gives me a sore head the next day and it is very painful