Mountain Hardwear  Lamina 0F/-18C Sleeping Bag

I've taken the Lamina 0° on about a dozen winter backpacking trips over the past decade, so I've spent around 40 below freezing nights in it. The lowest known temperature I've used it was 8° F. Most times I slept warmly in only baselayers, but this year in the Smoky Mountains I needed to wear a fleece layer to stay comfortably warm. Temperatures were in the low teens to upper single digits. It's a synthetic bag, so I suspect repeated compression has reduced the loft of the insulation. I wouldn't necessarily discourage someone from purchasing this bag, especially if they're on a tight budget. However, there are a number of drawbacks to consider. The bag is cumbersome even when cinched down in a compression sack. This bag takes up a substantial amount of room in my pack. Also the zipper often snags when trying to close it up. The bag will keep you warm when it's cold, but be prepared to spend a lot time trying to compress it down to a reasonable size, and know that eventually it will lose some of its insulating ability.

Very warm for winter car camping. My main complaint is the color. It’s a bit intrusive.