Customer Reviews Of:
Sierra Designs 5°F Mobile Mummy 4-Season Down Sleeping Bag - 800 Fill Power
Closeouts. A revolutionary bag that's warm enough to use year-round, Sierra Designs' 5°F Mobile Mummy 4-season sleeping bag moves when you do for ultimate comfort and convenience. A dual slider center zip makes it easy to get into, and arm ports and footbox toggles let you move comfortably around camp while wearing it.
Reviewed by Cop from Atlanta on Friday, November 11, 2016This is a bigger fit bag which is what I wanted. I am a stomach/side sleeper and this seems to be perfect for that. Just roomy enough for me to flail the legs a bit and move my arms inside the bag up to my head or down to my waist. The hood is fantastic. It fits like a hoody and is very comfortable. It allows you to change positions but never get tagled up in the bag. Good choice for restless sleepers.
Some concerns are for starters the arm slots. Convenient when upright but vert difficult to use when lying flat. Similar to trying to take your shirt off while lying down. Not easy while sleeping. Anothe concern is the draft flaps. Very easy to knock out of primary position. On a very cold night this could be an issue to wake up to your shoulder freezing.
I haven't tested in the field so I can't review it's temp rating. I mentioned the flaps being possible cold spots but unknown. I think if you want a super warm winter bag there is better but if you are like me and are a picky sleeper this is a good choice.