
Sierra Designs - Shut Eye 20 Synthetic Sleeping Bag
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Based on 1 year's data from Mar 18, 2026 How it works
You could just get a Sierra Designs Shut Eye 20° and have a “lifetime warranty”for the same price. I say lifetime warranty in quotes because I would still be weary about the wording of it. But still like my Sierra designs and haven’t had any issues
The typical weather in coastal PNW this time of year is lows in the mid 40s and I used to bring a Sierra Designs 20F synthetic bag, but with humidity at 90% and Pacific winds, it isn't comfortable. A fleece liner and extra blankets didn't make a difference so I now just bring a Kelty Cosmic 0 degree down bag.
Sierra Designs has or had one recently. I tried it out but didn't like it much and ended up going with a Zenbivy which is exactly what I hoped it would be.
I also got an EE quilt and have thoughts on rating - I opted for a 0° bag but this was motivated by spending some uncomfortable nights right around 35° in my Sierra Designs down bag that was rated at that. With a quilt the zero seems overkill but the design has meant I've been comfortable in much warmer temps despite being a warm sleeper generally. I can open it up, hang a leg or arm out, or be just partially covered. They key with the quilt style is having a pad that is matched for the temps you're in. On my last trip i still took my Sierra Designs bag as it packs slightly smaller than my ee quilt but this setup works for me to cover a wide range of temps. Admittedly I missed the mobility of the quilt compared to the mummy but I've spent most of the last 30 years in mummy bags so it's not unfamiliar.
I have a Sierra Designs sleeping bag that has an actual foot flap that allows you to have your feet out of the bag while your body is still in the bag. It’s great. Highly recommend.
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