Hitting the hay in the innovative Riff 15 Sleeping Bag by NEMO Equipment Inc. gives us the comfortable space we need to get a good night's rest. This bag's Spoon shape design gives us more room in the shoulders elbows and knees to help prevent feelings of claustrophobia and make room for side sleepers. A waterproof foot box and hydrophobic down insulation keep you warm even from tent walls lined with rain or condensation helping you wake up with the sun after a stormy night. If you put on too many layers before bed unzip the Thermo Gills to release heat without letting in cold air or connect your bag to your partner's compatible Jam model if you are looking for more warmth.