Are you going on an outdoor expedition and want to use the hammock as a place to sleep? Then you should not forget about the quality Underquilt. The U-shaped hammock has the riskiest place for colds in the lower part of the body, where the Underquilt will protect you. It hooks under the hammock, between you and the ground, to provide maximum insulation for your bottom. With the Underquilt, you'll sleep like a dream and the wind and frost won't get to you. Don't forget to also bring a sleeping bag or Topquilt for your upper body and you'll be fully equipped to sleep comfortably in your hammock.