Rant: I used a $20 Walmart sleeping bag on a trip to the Smokies and froze, then borrowed my buddy's $150 Kelty. Night and day. | Camping Gear Reviews - Guest Forum
Honestly, how cold did it really get? I've used cheap bags in spring and been fine. Maybe you just got one that was rated for way warmer weather than you needed. Isn't it more about picking the right temperature rating than just the price tag?