Keeping your entire body warm is the biggest challenge to sleeping in a hammock year around. To stay warm you need to trap air. It doesn't matter if it's a sleeping bag or a jacket. Trapping air is what keeps you warm. The problem with a hammock, is that when you crawl into a sleeping bag you're compressing the bottom of it. On the ground, this isn't a problem because the ground reflects your heat, but in a hammock, you're hanging there getting cold by the minute. Sleeping pads are one way that hammock campers have traditionally dealt with chilly evenings. The problem is that sleeping pads are made for tents, not hammocks. A large rectangle doesn't fair so well in a hammock. It's a lot better than nothing, but it has it's problems.

The Klymit Insulated Hammock V is specifically designed for hammocks with Klymit's signature body mapping technology. There are flaps for your arms and your legs to eliminate cold spots. The Klymalite insulation also separates the top and bottom half of the pad, so warm air is trapped next to your body. It has an R-Value of 4.4, which is pretty good, considering it's size and portability. For comparison, the standard closed foam mats that you commonly see strapped to backpacks have an R-Value of between 2 and 3.

The Klymit Insulated Hammock V only took about 30 breaths to inflate, so it was ready in short order. I have to say that it did indeed trap a lot of air, keeping my back side plenty warm. Depending on the size of your hammock it can be a little tricky to center at first, but once you do the non-slip zones keep it in place. I didn't want to get out of it and immediately wished I was backcountry camping. If you're looking for both warmth and a little extra padding in your hammock, the Klymit Insulated Hammock V is worth a try. $169