lost my retainers

If they just fell off of the night stand, then maybe you can locate them somehow. They must be somewhere nearby. Hopefully, you don't have any pets that might have taken them. If so, you may want to look under all furniture. My sister has a couple of little dogs, and they love to hide stuff under the couch way in the back against the wall. Maybe if you know someone who has a metal detector, they can come over and try to find them with that. :) Good luck to you. I hope you don't have to come up with the money to buy another one.