i currently own an ALPS mountaineering lightweight air pad to go along with my big agnes blackbu

bag:
https://www.bigagnes.com/Products/De...ag/blackburnSL

the ALPS pad weighs 2.2 lbs, which i feel is a bit heavy, and it's also semi bulky. on the plus side, the pad fits pe
rfectly in the pad sleeve on my bag and it's very comfortable.
would switching to a z-lite be a smart idea conside
ring the big agnes bag doesn't have any insulation on the bottom? i have a golite jam and was thinking i would use the z-lite as a frame and cut down on some weight/bulk.

also, does anyone know the
r value of my current ALPS pad? i can't find it on the official site.