Echo Park 0°

Without knowing much, I'd almost always favor the colder rated bag. You can always vent if you get too warm, but once you get too cold, it's hard to recover. That being said the Greystone is down so much lighter and packs smaller, very useful if you're backpacking and space/weight is more limited than car camping. Echo does have a cotton/poly blend internal lining which would also be more comfortable compared to straight poly like the Grey. If you can deal with the weight/packed size of the Echo it gets my vote.

Big Agnes has multiple options, like the Echo Park 0. Fits up to 74" hips.

Yes, but the Echo Park is sold in various warmths. You're cold in the 0 degree version?

If weight is not the issue. I would personally use a sleeping bag at all. I would get a mondo king like 3-4inch flat foam pad (alps makes one that costs less) they have an r-value of 8+ and the i would use a synthetic camping quilt rated for -15 or 0. or Something like zenbivy (I use the it Agnes version) that connects to my pad. and then I would buy a decent wool blanket as my extra back-up warmth as you can use above, below, or wrapped as it still keeps warm even compressed. A cots going to be cold your gonna want the foam under you.

I got this one https://amzn.to/4d84pgK but there are many. Quilts I use an older version of this sleep system https://www.bigagnes.com/collections/below-zero/products/echo-park-zero

Hi! I’m a geology major who spends a good portion of the year studying out in the wilderness, sometimes in below freezing temperatures. I cannot find a sleeping bag that fits my body and have been using a rectangular bag that almost sent me into hypothermia the last time I used it because it does not have fill in the back. I unfortunately have very wide hips and shoulders and am plus sized but also very short (5’1”). This causes a lot of issues namely the fact that most sleeping bags cannot zip up because of my hips. I need a bag that has these specifications: 1. 65in minimum bust/shoulders 2. 70in minimum hips 3. Rated below 10°F 4. Short or the company will be able to alter the bag for a very short person 5’1” 155cm 5. Price and synthetic vs non synthetic are not an issue. I am very willing to pay up for a bag that won’t send me into hypothermia (been there done that it sucks 😅) I made a post on my profile that also has a picture of all the specifications. Thank you so much for reading!

I have a [Therm-a-Rest MondoKing 3D Sleeping Pad](https://www.sportsmansguide.com/product/index/therm-a-rest-mondoking-3d-sleeping-pad?a=2235188&szc=003&clrc=000&utm_source=google&utm_source=google&utm_medium=pla&utm_medium=pla&utm_channel=pmax&utm_channel=pmax&utm_campaign=23227870695&utm_campaign=23227870695&utm_product=wx2*0719285000003&utm_product=wx2*0719285000003&gad_source=1&gad_campaignid=23237217838&gbraid=0aaaaadzpao0pj92wzxfylbfymj7qsedy9&gclid=cjwkcaia24xjbhbxeiwaxelo33ihxt4um_ab9oms6xighct637ajytmdqhse0qg8irtwtkchqyrxtxoc-ksqavd_bwe) (7-R value) It’s a great pad but I have to downsize in the future and it hasn’t been enough with my Big Agnes echo park to keep me from getting very very cold. We have serious wind chill, rain, snow, etc and in below freezing temperatures the open back on the echo is deadly which I found out the hard way 😭

Love my echo park, sadly it has not proven to be warm enough in below freezing temps

Yes 🥲 I almost got hypothermia in it when it got far below freezing with crazy wind chill. I was bawling, my fingers turned blue, I called my mom at 2am because I genuinely thought I was dying. I’ve never been that cold in my life it was pure pain. I love the echo park for mild weather, it is quite comfortable in 50-60°F but for a short woman it is comfort and safety rated far too low. I also lose more heat than if I was tall because the entire bottom of the bag is empty. I usually fill it with clothes to keep myself warm.

I have the [Therm-a-Rest MondoKing 3D Sleeping Pad](https://www.sportsmansguide.com/product/index/therm-a-rest-mondoking-3d-sleeping-pad?a=2235188&szc=003&clrc=000&utm_source=google&utm_source=google&utm_medium=pla&utm_medium=pla&utm_channel=pmax&utm_channel=pmax&utm_campaign=23227870695&utm_campaign=23227870695&utm_product=wx2*0719285000003&utm_product=wx2*0719285000003&gad_source=1&gad_campaignid=23237217838&gbraid=0aaaaadzpao0pj92wzxfylbfymj7qsedy9&gclid=cjwkcaia24xjbhbxeiwaxelo33ihxt4um_ab9oms6xighct637ajytmdqhse0qg8irtwtkchqyrxtxoc-ksqavd_bwe) (which has a 7-R value) With my big Agnes echo park it was freezing. 🥲 I need to downsize for space in the future unfortunately and I roll a lot so filling on the underside is a must. The straps are a great idea I’ll look into that!!

The lack of filling on the one side in the bag you mentioned is because the side you lay on (against the sleeping pad) will be compressed so much as to be generally useless as insulation. Cotton is a bad idea for anything intended to maintain warmth. I like the suggestion of the quilt and sheet made earlier.