I am experimenting with a swiss army wool blanket, for the times when I would like a more "roots/minimal" approach.
I used it for three nights so far in a big comfy cotton hammock on my patio.
Temperatures at the lowest were around 10-12°C (~ 50-55°F), I wrapped myself "mummy style" in the blanket to have a wool layer on top and bottom; the blanket was not enough (But I think I would have been ok with warmer clothes).
The one slightly warmer night was ok, but comfort was not so great as I tend to move quite a bit during the night, and I didn't like being tied in the blank, not being able to freely move my legs and adjust my position without creating huge cold air gaps…
The last night when the temperature was high enough to allow me to just loosely fold the blanket in half under/over me was nice.
So far, the experiment is worth continuing; I like the feel and warmth of wool (it is waaaaay better than nylon imho) and I suspect it will be great for summer.
Yes it is bulky and heavy, but not so much more than SB+UQ combined… and you can wear it around the fire ^__^