I take my dog backpakcing all the time. She is a 15 year old sheperd husky mix. She used to sleep in the tent, but two years ago I switched to a hammock. Now she sleeps under the hammock and tarp on a thermarest that I, unfortunately, pack in for her. She has a tendency to scratch the floor prior to laying down and will do it several times throughout the night.The tent floor was never damaged as a result, but I would ask her to stop...lol! If you think it could be a problem, try some non-insulated, light dog booties for when your dog when he/she is in the tent.