Sisu Sova Night Guard

"The way it works is that you get a flat piece of plastic that is moldable when submerged in near boiling water for a couple minutes. You take it out, put it in your mouth and let it form around your teeth. This creates a custom fit just for your mouth and teeth. I’ve used it about a month and it has worked just as well as my $500 custom-fitted night guard from the dentist."