I also was grinding my teeth and had an appliance made by my dentist. Set me back over $300. When it dried out, I bought one at Walmart in the sports department. They are the plastic mouth guards for athletes. Costs all of .98 cents a few years ago. Haven't bought one lately. But you mold it to you mouth after softening in hot water and presto you have a mold of your mouth , and you have saved $299 to spend on your stash.