Question about the timing when using a face mask!

Do you just leave the mask pack on while you sleep, or do you leave it on for 15-20 minutes as instructed and then remove it before going to sleep?

This is based on using a face mask at night.

I used to do it at night, but I was so tired that I just fell asleep, and sometimes I would catch it on my toe in the morning. If I apply it and it just dries on my face, will that be bad for my skin?

Is it okay to just wear it while sleeping? I feel bad about not wearing it, but if sleeping with it on makes things worse, I’m thinking it’s better not to do it at all!

I wonder if I'll get more wrinkles or if that will happen. Do you all peel them off neatly before going to sleep?