I bought this kit for my wife and despite my many attempts, I could not convert her to a hammock camper. I have the same kit and don't need double. Both items were only used once about a month ago and look new. I am the original owner of both items.
Warbonnet Blackbird 1.7 single layer hammock - $140 shipped Sold
Hammock Gear 3/4 20 degree Underquilt - $140 shipped SPF