Walmart offers the Ozark Trail Adults' 10-Degree Thinsulate Wearable Sleeping Bag for $19. Opt for in-store pickup to dodge the $5.99 shipping fee. That's $3 under our October mention and the lowest price we've ever seen for this sleeping bag (it's a low today by $6.) It features 3M insulation for extra warmth.
The planet will thank you, your local (overwhelmed) landfill will thank you. Even your budget will thank you.