Sound the alarm: the Mountain Hardwear Heratio Women's 32 Degree Down Sleeping Bag is setting sleepers on fire in a good way, mind and this three alarm blaze of warmth and comfort doesn't show any signs of slowing down. You can't put it out with water, since the 650 fill down's been treated with Q. Shield to resist water, and the tough nylon shell has a DWR coating to further keep the wet at bay. Neither can you just expect everything to cool down on its own, since the ThermoTrap baffle system keeps down in place for increased warmth and the women's specific mummy shape provides extra insulation around the torso and feet, where ladies need it most. The Heratio's rated to be comfortable down to 32, making it a perfect, lightweight late spring, summer, and early fall bag for campers, backpackers, and sleeping enthusiasts.