Realizing warmth is a big concern for women when they sleep in the backcountry the Thermarest Women's ProLite 4 Sleeping Pad not only addresses the need for cushioned comfort but it offers enhanced insulation when compared to the unisex ProLite 4 models. The length is also much more suited to a woman's needs providing full length coverage without the useless excess length (and weight) of unisex models. The Women's ProLite 4 Sleeping Pad is warm enough that it's recommended for camping on snow.