Wild country matterhorn standard sleeping mat description the matterhorn standard sleeping mat is a 25mm1 inch thick self inflating mat offering good quality insulation from the ground with silicone print anti slip logo for a better nights sleep and extra wide valve for quick inflation cut outs in the foam help to reduce pack size and weight phthalate free pvc ideal for d of e award scout and guide use specification packed weight 915 grams 25mm thick offering good insulati