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Add to SafariWhen comparing Kelty Cosmic 20 Degree Sleeping Bag vs TETON Sports LEEF Ultralight Mummy Sleeping Bag, the Slant community recommends TETON Sports LEEF Ultralight Mummy Sleeping Bag for most people. In the question“What are the best backpacking sleeping bags under $200 for women?” TETON Sports LEEF Ultralight Mummy Sleeping Bag is ranked 1st while Kelty Cosmic 20 Degree Sleeping Bag is ranked 2nd. The most important reason people chose TETON Sports LEEF Ultralight Mummy Sleeping Bag is:
Since the bag uses a double layer construction it will not develop any potential cold spots over time.
Question Ranking
Pros
Pro Well-made zipper
The zipper is sewn in a way that it’s hard to snag the sleeping bag in it. This means that you will not have to freeze while you are trying to unzip a jammed zipper in the middle of the night.
Pro Lightweight
Weighing just under 3 pounds it should be easy to carry it around for longer camping trips without feeling the weight of the bag.
Pro Water resistant coating
The cover and the filling is water resistant so you will not wake up wet and cold in misty mornings.
Pro Great warmth-to-weight ratio
Thanks to the 600 fill power DriDown used in the bag it is light while still performing well in low temperatures. You can use this sleeping bag in cold autumn and spring nights as you will still feel comfortable in temperatures as low as 30 degrees Fahrenheit.
Pro Doesn’t lose performance over time
Since the bag uses a double layer construction it will not develop any potential cold spots over time.
Pro A dedicated pocket for small stuff
The bag has a dedicated storage pocket inside for small stuff like wallets and keys.
Pro Compact when packed
Once packed in the compression bag it takes up only 10” x 8” of space making it easy to transport it around.
Pro Lightweight
The bag weighs only 3.5 pounds so it can be used for casual backpacking journeys and you won’t feel the weight that much.
Pro Suited for cold nights
The PolarLite micro fiber insulation together with the three piece adjustable hood and zipper draft tubes will ensure you are warm in temperatures as low as 20 degrees.
Pro Lifetime warranty
If the bag has a defect from the manufacturing process it will be replaced no matter how long ago you bought the bag.
Cons
Con No pockets for small items
There are no dedicated storage places inside the bag for small stuff like phones and wallets.
Con Can develop cold spots
You need to fluff up the bag before using and once in a while when storing to even out the filling or it will settle down and be scattered unevenly across the bag.
Con Smells odd
Some people will not like the smell of the bag when using it for the first couple of times as the down filling has a slight bird smell. It should go away after some time though.
Con Doesn’t come with a compression sack
There’s no compression bag included, only a stuffing sack. This means it will take up quite a space when packed. You can reduce the space by about 30% by buying a separate compression bag.
Con Takes some practice to put in the compression bag
The bag is meant to be stuffed not rolled in the compression bag. It does take some getting used to the stuffing process to do it effortlessly.
Con Tight
The bag is narrow, especially where the chest is, if you are big chested, it will feel cramped inside.
