The only punctures I've had in my old Thermarest have been when I've loaned it to friends to sleep indoors! By current standards it's a bit heavy (bought well before they switched to the lattice style of foam) but excellent quality. More recently, with an eye to a spot of extra comfort, I bought one of the 40th Anniversary Thermarests, deep, plush and an eye-watering shade of yellow.
Along the way I tried a lightweight mat from Decathlon, which I think was called an A100. Rather thin and definitely a few rungs below Thermarest on the quality ladder, nonetheless it was excellent value (about £17, I believe) and did a fine job under my tarp as I crossed Scotland on the TGO Challenge.
With most of the mats you can effect a quick repair using Tenacious Tape, less of a faff than the full kits.
Along the way I tried a lightweight mat from Decathlon, which I think was called an A100. Rather thin and definitely a few rungs below Thermarest on the quality ladder, nonetheless it was excellent value (about £17, I believe) and did a fine job under my tarp as I crossed Scotland on the TGO Challenge.
With most of the mats you can effect a quick repair using Tenacious Tape, less of a faff than the full kits.