I've been waking up, grinding my teeth and having my head hurt from it so I finally broke and bought a night guard. This was $30, which I thought was steep. I was right. It's supposed to be 'one size fits all' and mold to your mouth, but it isn't and doesn't.

I went through and read the instructions 3-4 times before actually trying to form it to my mouth. The 'channel' that you mold to your teeth becomes sticky after boiling, and gets on everything. From the fork you use to pull the thing out of boiling water to your fingers when you're trying to get the fork off the guard, the sticky substance pulls away from the guard and starts cooling immediately into a new shape. When you do finally manage to get the sticky mess into your mouth it doesn't 'suction' or mold properly. It doesn't stay put. This is a terrible product.

I'll just wait until all my teeth fall out and get dentures. Problem solved!