The Overview
The Therm-a-Rest Mira Women’s Sleeping Bag is new for 2014. It’s a three season, 15ºF 750+ fill goose down bag that has special features to keep women warm and comfortable for a great night sleep. It features a women’s specific cut, an extra warm toe-box, secure links to keep connected to your sleeping pad, and silky soft fabric that makes me want to lounge around my living room in it on days when I’m not out adventuring. It also uses ThermaCapture- a reflective lining that amplifies warmth from your body. On top of all this it’s light weight and packs down quite small. 
The Test
I tested the Mira bag during my canoeing microadventure. It was an evening in the 40’s. We slept in our tent with just screens (doors open) and sans rain fly. Usually I zip my bag into my husbands bag, and while this usually keeps me warm and this bag does have this ability, to stay true to the test, I kept my bag solo.
The Review
At first impression, I was totally in love with the silky slippery quality of the fabric this bag is made from. It felt so warm and cozy that I slept without my base layers for most of the night. The fit was perfect. I don’t think I’ve ever actually slept in a bag that fit me so well before. When in it with the hood on my feet were touching the bottom of the bag and my head was touching the top. I almost always have had extra room in the feet. The regular size fits 5’6, my height.
I’ve also never had a bag that I could affix to my sleeping pad. The Therm-a-Rest Mira uses Synergy Link connectors that loop around any sleeping pad to keep you insulated if you move around a lot. I’m a side and belly sleeper, so this really helped keep me on the pad as I flipped around.
I was quite pleased with the packed sized of this bag as well, as my goal in this project was to explore minimalist packing for short overnights. The packed size is 7 x 12 in. Given that this was my first very packable bag, I was super impressed by how warm I was. It was like sleeping in a down sweater.
I have not yet tested it at the limit temperature range which goes down to 15ºF, but I’m pleased that this bag will take me through spring, summer and fall.
