How long do you sleep?

I can't sleep for 10 hours、munejyuka。

My average sleep time these days is around 6 hours.。

Is it long? Is it short? ? Is it normal?
8 hours even though it's short、I can't sleep for 9 hours、After doing it for about 5 hours, I feel really sleepy during the day.。

Establish your best sleep time!