Mammoth 0°F

Kelty is a good brand and you are in the right price bracket. I personally have a Teton Mammoth Double Sleeping Bag and me and my partner love it for car camping in MA. The synthetic shell on the Kelty will probably do better if there is any risk of water infiotration. My experience with double bags is that they are drafty so they run cold. They're _big_ and so they are hard to clean. Fortunately you can fix both by getting a sleeping bag liner, which I'd highly recommend. I hope you guys have a good time!

I just got back from camping. I use a queen size Teton Sports Mammoth sleeping bag... just for myself. I will never go back!

We have the 0 degree mammoth bag for fall and spring. It's beyond cozy!

Highly recommend the Teton Mammoth bag.

As long as you're not hiking and your car camping I would suggest Teton Sports zero degree XXL sleeping bag.

Honestly, an XL Teton from Amazon will be more than fine, but choose one that is rated for temps as low as 0 degree F at least. (I wouldn't use these at 0F, but they'll be warm with 40 degree nights in Oregon) I prefer the ones with softer poly-flannel lining inside.

i honestly dont know how much warm it provides but i like my s2s reactor bag liner. much better feel than my nylon quilt. but matched with my paria 15deg quilt, ive found it a good winter camp combo. that's with a nemo tensor extreme and ccf pad. also have a zero deg teton bag i use at hunting camp. thing is budget friendly ($100) bulky and wicked cozy. if space isnt concern, and budget is, its a good option. can look into bedrolls too. can throw certain setups in a snowbank and sleep cozy. have no product experience tho