If you're the type who likes dancing in their sleep, you might want to give the Disco 30 a closer look. NEMO's unique spoon shape gives this bag more room at the elbows and knees, so you're free to roll around, do a little jig, or sleep on your side. And since its filled with down that's hydrophobic, you don't have to sacrifice weight for wet weather comfort—its still light enough to take on week-long backpacking adventures, and won't lose valuable loft should your bladder leak on the trip.