Excellent for sleepovers and camping trips the Kelty Eclipse 35 is an all-purpose rectangular sleeping bag made with a polyester-cotton liner. It's an ideal addition to any camping cabin or yurt--especially if you don't like the constraints of closer-fitting mummy bags. The Eclipse 35 has a dual-layer design with an offset quilt construction that helps retain plenty of body warmth. We like the feel of the polyester-cotton liner because it doesn't feel "slick" like most of those taffeta design out there. There's a draft tube along the full-length two-way locking zipper and the entire bag unzips to double as a comforter. Practical roll up straps keep the entire bag stowed neatly away in the back of your car or SUV. If you need a little extra warmth for those lightly insulated alpine cabins check out the extra loft in Kelty's Eclipse 20 sleeping bag.