I slept in this bag two nights (in base layers and with a pillow) this winter and it was outstanding. Thats all it has been used.It has been properly stored in storage sack, dry and cool in my basement. Recently bought a quilt and dont need a mummy bag also for the type of backpacking I do. It is the best bag I have ever had. Full-length #5 YKK Zipper, left zip. This bag is wide, warm, and packed with features. With a 3-dimensional full down collar, a full-length YKK zipper, and 5 of loft, the Alpinlite has quickly become one of our most popular models. Our award winning Ultralite has been a favorite among lightweight backpackers for more than a decade. The Alpinlite is just a wide version of that great bag. There are many 20° down mummy bags on the market, but none have the width, warmth, or loft of this bag. The item "Western Mountaineering Alpinelite 20 Degree Down Sleeping Bag 6 Left Zip" is in sale since Friday, May 25, 2018. This item is in the category "Sporting Goods\Outdoor Sports\Camping & Hiking\Outdoor Sleeping Gear\Sleeping Bags". The seller is "drake227_0" and is located in Denver, Colorado. This item can be shipped to United States.