ALPS Mountaineering gave the Comfort Series Air Pad a slew of features to ensure you sleep comfortably and stay on your pad all night. This inflatable pad includes an open-cell foam interior for increased insulation and faster self-inflation. Just open the valves and let it sit. A few puffs of air is all that's needed to finish the job. ALPS Mountaineering added PVC dots to the bottom of the Comfort Series Air Pad to keep it in place on your tent's floor. They also included a brushed top fabric that keeps you from slipping off in the middle of the night.