Relaxing in a hammock sipping lemonade (or something a little stronger) brings to mind the perfect summer afternoon. Now the hammock can be a part of your winter activities. The Inferno is a lightweight insulation system that winter-proofs your hammock. Inferno consists of two parts; an under quilt and a top quilt. The design was built to seal in warmth at both ends of the hammock. To avoid the double threat of cold and wet, Inferno is also weather resistant.