Coleman - Big Bay 0° Mummy Sleeping Bag

Mi first bag was Coleman mummy synthetic bag. 50$. Good till 32F, then you’re really cold. Second bag is Nemo disco 15F. ~300$ on sale. And I got Disco 30F for 200$. Coleman isnt compact but does the job. Nemo’s got some room at expense of worth but they’re compact AF

I bought a Coleman 0 deg sleeping bag at Ocala FL Walmart back in the early 2000s. Was out on an impromptu weekend and needed a bag. I think I paid $40 for it. It was actually a great bag and I still own it. I quit using it bcs it is a synthetic fill 0 deg bag and doesn't pack down small enough for my pack. But for car camping 100%. Never found another one like it. Loved it!. Worst case, you don't have a ton invested. Although, you can find several comparable bags for around the same price. We have so little faith in Coleman brand these days and rightly so, but from time to time they actually still make a good product.

You can get a foam pad for a little ground insulation and a warm Coleman mummy bag for cheap. With enough warm winter clothes, eg a polyester filled winter jacket from goodwill, bib overall ski pants, a wool hat and warm gloves you can probably be warm enough and use those clothes to get around outside if/when your condition improves. If it's really cold add a balaclava for your face.

I’m a cold sleeper & bought a $40 Coleman mummy-style sleeping bag & it’s awesome! I think it’s rated for 40F but I haven’t used it at that temp.