The NEMO Women's Rave 30 Sleeping Bag is a down sleeping bag for backpackers that side sleep. More room for elbows and knees, plus Thermo Gills to vent body heat. What more could you want while you sleep in the backcountry? The Nikwax Hydrophobic Down is a 650 fill power to keep weight down, packability high and there is enough of it to keep you warm down to 15°F nights. Did I mention it even resists moisture? Take that, tent condensation!