Tried it this week for the first time, and am now feeling pretty enthusiastic about combining two bags/quilts rather than using one heavier one.
I used a 30F Katabatic Palisade 6'/Wide and 50F Flight Jacket quilt from Underground Quilts in their 72"(<5'9" user)/Wide size, plus the Goosefeet down hood sold by Zpacks. Edit: pad was an Exped Downmat UL 7 M
Started with the 50F on top, but the Katabatic is roomier and was attached to my pad, so I moved the Flight Jacket inside.
This worked out really well. I was wearing polar weight Powerdry bottoms and a R1 hoody under Marmot Scree pants and an OR Ferrosi hoody, and was actually too warm at one point. Yeah, I know all about using the lighter quilt on top to deal with condensation(there wasn't any, regardless), but having it inside let me push it out of the way when I was warm, then cuddle back up when I got cool again.
Time stamp shows 8:46pm, and it was the same temp when I got up ~2am to answer the call. My friend's digital thingie showed 4.2F as the overnight low, so I guess that's as cold as it got.
I was comfortable, and feel like I could easily get another 15+ degrees out of this setup with a down hoody. Was using my Montbell Alpine Light Down Parka for a pillow…
Anyone else want to share the combos they've used, and what temps they found them usable at?
