I recently used my 20 degree 5 in 1 blanket on a hunting trip. We had night time temps varying from 25 to 40 degrees. Below 35 degrees, pending your level of self warmth, you may need to sleep in a medium, or heavy merino base layer. I stayed plenty warm with a light base layer bottom and med weight base layer top.

No actual pic of my puffle in the wild, but here is our camp.

The finish of the overall product is great..

This blanket is soft and warm. It compresses down and is light weight. If snaps so you can use it as a sleeping bag, wear as a cape or use as a blanket. The only negative (and it’s not a huge thing) is that when using it as a blanket if is a bit narrow but since you can snap it to another blanket it works.

Super warm and love having multiple options of use.

I just got my puffle for my partner and I to use when backpacking. Haven't used it yet. I'm worried it won't be warm enough because it's so thin, but I am thinking since we can snap them together and snuggle we'll probably be okay. I like how lightweight and compact it is.