Comments about Coleman Crescent 15F Synthetic Mummy Sleeping Bag:

I've only used this bag on one trip, and the over-night temps were low 40's upper 30's. I was down to boxer shorts with the bag mostly unzipped and i was still too warm...that said, it's better than cold.
The bag was comfy and roomy enough (I'm 6' 225#)
The zippers worked easily and didn't snag.
I am looking for another bag primarily because this is rather weighty and bulky for back-packing and warmer than I need.
I gave it 4star for quality and comfort but not if you want to back-pack.