Anybody using poncho liners for top quilts? How cold can they go if so?

[Just Bill]

If it helps any-
So far in my hammock experiments I've found the bottom quilt to be the critical piece. On the ground I can "push" insulation much farther than in the air.
If money is tight and you have to choose- a good underquilt would be my choice. And deal with whatever you can afford up top or wear extra clothes.

If anyone knows what's in it, I can give you a rating. But generally I hear 50* average on those.

[RangerZ]

I should have said that I was tenting.I’ve used one poncho liner down to about 60, maybe 50 with long base layers.Two poncho liners and long base layer to above 40, sleeping bag below that.I’ve never tried to line my 23* bag with a poncho liner to extend it colder.

This weekend I took my two poncho liners to sleep with in short UA base layers.Thursday and Friday night I was okay, mid to high 50s overnight.Sunday morning I woke up a little cold, it was about 51 degrees overnight, cooler than was forecasted.I would have been okay with long base layer and socks.