The Sea To Summit Ether Light XT Insulated Mat is a three season sleeping pad for comfortable and quiet nights in the backcountry. Unless there are crickets, there is nothing this pad will do to silence those buggers. This lightweight pad takes up little space and weight inside your pack and once you lay down to sleep, keeps you off the cold, hard ground. The four inch thick pad features an R-value of 3.2 and has Thermolite HL-1 within the chambers plus Exkin Platinum to reflect your own body heat back at you for plenty of warmth. Sleep soundly, roll over if you wish, the durable face fabric is nice and quiet against your bag.