You super glue it in
Your body moves repeatedly while you are sleeping so there is no safe way to keep your mouth shut while you are asleep. Your mouth will automatically open if you are not getting enough air through your nose.
A fly.
Anything in the mouth when asleep can cause choking and death. The child can have the cough drop 10 minutes before bed, then have the child spit out any remaining portion and you take it out of the room to throw it away.
"No comment" or "I cannot talk about or comment on that" or "Please don't ask me, I cannot talk about it" Or just plain keep your mouth shut when the the sacred subject comes up. Better yet, get up and leave.
to keep from falling asleep
I think you did not have enough sleep, or you get bored very easily. Try to test out these things to find out why you keep falling asleep
Keep your eyes open
because they are poops
It is called narcolepsy.
what astronauts do to keep their mouth healthy is to brush their teeth obviously (and what do suits have to do with your mouth) NOTHING!
Because we brush our teeth then sleep and while we're asleep our mouth is dry and smells bad. Dogs on the other hand always keep their mouths wet and so there is your explanation. Actually the human mouth has many more types of bacteria than that of a canine, which is why you find more odors in the human mouth.
No. One of the main reasons that space ships are not equipped with gravitational shields is the fact that such a device doesn't exist. What would a gravitational shield do?? Keep gravity in? Keep it out? Set up a barrier between astronauts so that they don't accidentally get attracted to each other and bang together while they're asleep?