It is stated that it sleeps two but I didn't buy it for that reason. I figured the bigger the better and I think I was right. There is a lot of room in the double nest, I can lay in this baby any which way and it is still comfortable. It is a bigger hammock then the singles. Yes, one hammock not two. For colder conditions I can't answer being it is summer here in NY. But under quilts are available in various degrees with the optional top quilt. I think for fall I will pick up a quilt and use my bag for the inside with the rainfly and bivy sack. Haven't used a quilt yet, but a purchase is in the forecast. As for a sleeping pad, I will just let my body conform to the hammock and see what happens. Being off the ground has so many more advantages than being on the ground, not just comfort.
