Mat repair kit.
With the Permanent Home Repair Kit from Therm-A-Rest you can repair small and large holes and tears in your mat. Blow open the mat. Simply locate the damaged area and mark it. Clean the area with an alcohol wipe. Cut the cover patch to size, apply the adhesive dot, rub it in and apply the patch. Let the air out of the mat. Place a sheet of foil on top and weigh it all down for a day. That's it. The mat is then ready for use again.