…for me, anyway. I was starting to wake up when I discovered I couldn’t move my tongue completely. Since this had happened once before, I had water next to my bed.
Please don’t laugh or at least laugh softly so I can’t hear-it really hurt.
I’ve been a mouth breather since birth and I sleep on my side. Apparently, my mouth dried up and my tongue ended up glued to some of my teeth! Trying to swish water around when you can’t move part of your tongue is really hard.
Plus it hurts–a lot! 
Lol.
Why are you a mouth breather? Are you one of those people who have like a weird top-lip shape that makes it hard to close your mouth? Do you often have a stuffy nose? Are there any other reasons for being a mouth breather?
I’m only a mouth breather when I have a stuffy nose (during the day-time, almost never, but at night time if I’ve been having allergies or a cold I’ll mouth-breath), but I know some people who just literally find it hard to close their lips, because of the shape of their lips or their teeth are too long or stuff like that.
Thank you for not laughing too loudly, FJ.
The only things I can think of are 1) I had a very bad respiratory infection before I was a year old that almost killed me; 2) as a teen, my lungs collapsed spontaneously.
Having read about mouth breathers, I know it can lead to facial changes–I don’t know why. The shape of my face is “long” and unlike any of my immediate family’s (except for a boy 5-6 generations ago who died of bronchitis when he was 12.) My jaw was too small for all my teeth, so I went through years of orthodontia.
Mainly, I think I feel I just can’t take a really deep breath through my nose; I’m trying to correct that, during the day, at least.
I wrote what I wrote trying to be funny. Now I realize mouth breathing can be dangerous to your health. 
PS I know the slang definition, by the way. 