FeatherLite +20 Ultra Light Sleeping Bag

Purchased in Feb. 2010 for use as a 3-season sleeping bag. Used two nights in 60 deg. F house. Too warm while zipped. Perfect for unzipped use. Used on March 20, 2010, during a low 40 deg. F nighttime backpacking trip in NY state. While wearing sweat pants, tee-shirt, sweat shirt and socks, I was mostly comfortably but just a little cool. Therefore, I will not use this sleeping bag for lower than 40 deg. F nights which is fine for my intended use. As the literature states in the sleeping bag box, the 20-deg F rating is a survival rating which means to me being heavily clothed while using it at this rated low temperature. This was my first mummy sleeping bag. I am a 5' 6", 140 pound male, and felt a little claustrophobic in the bag. But I wanted a compact and light weight bag, so I will get use to the tight quarters in the mummy bag. For someone much bigger, I recommend rethinking whether or not you want a mummy sleeping bag. The bag dimensions on the label is 84" long, 32" wide at chest, and 20" at feet. From what I have seen for mummy bags, this is rather typical. Although, when I measured the bag, it was 2" smaller for each of these 3 dimensions. I wanted a nylon inner & outer shell bag. This sleeping bag was advertised as such on the OverStock.com site. However, when I received it, it had a polyester inner and outer shell. I like nylon because I expect it to wear better than polyester and it doesn't smell as bad with any contact to perspiration. Since most light weight bags that I investigate are polyester shells, I assume that there must be other advantages that I am unaware of. The bag comes with a nice compression sack which measures 8" diameter and 14" long with the bag in it. This is a nice compact size. The bag compresses rather easily in this sack. As for weight, the bag and compression sack weighs approximately 3.5 pounds per my bathroom scale with a fill weight of 1.5 pounds per the label. I was looking for a bag under 3 pounds but it is rather light compared to my other two sleeping bags (i.e. 5 & 8 pounds). Overall this bag meets my expectation. I am looking forward to many years of use with this bag. Good luck to you in your purchase.