I have only used this sleeping mat in two occasions since buying it a week ago. One night was in the Kiwi bush in the middle of the South Island in April at a campsite beside the river in a very cold night and tucked up in my sleeping bag on top in my Quest Mat I slept like a baby. And that is coming from somebody that wakes up all night long. Where I was staying, there were wild Red Deer in the area and the males were roaring during the night and close and I even slept through most of that. The second occasion was at the beach on the Catlins Coast, which was a bit warmer but still chilly. Once again I got tucked in to my sleeping bag and off i went into slumberland. I woke feeling fresh and ready to charge into the day ahead. I can't rate this sleeping mat high enough, it is noiseless, super comfortable and warm with not an ounce of cold coming up from the ground. The only thing to watch for is that I bought a Dreamer 75 and I probably could have for away with a 55 or 65. The 75 is for a bigger person and I have a lot of excess room on the mat. I only sleep in a 1 person tent and there is no room for anything else on the tent floor. But my clothes sitting on the mat beside me do stay warm and dry by not being on the floor, also i keep my clothes in a dry-bag in the vestibule outside the tent anyway so its not a huge deal. It is no good for hiking as it is too bulky but perfect when driving to your campsite and tenting near your vehicle. Sweet dreams!