I gave up on my fancy ultralight sleeping pad after a cold night in the Adirondacks
I used to think a 12 ounce inflatable pad was the only way to go for backpacking, but that changed last October. I was on a trip near Lake Placid and the temps dropped way lower than forecast. I spent the whole night feeling every rock and the cold ground through that thin pad, maybe it's just me but I couldn't sleep at all. Now I carry a closed-cell foam pad that weighs a bit more but never fails. Has anyone else switched back to simpler gear after a bad experience?
Ever try stacking your foam pad on top of the inflatable one? I do that for winter trips. The foam stops the cold air inside the inflatable from stealing your heat, and you still get cushion.
Been there, done that, got the cold backside to prove it. My fancy inflatable pad turned into a giant ice pack on a trip in the White Mountains. You start the night on a cloud and wake up on a slab of cold plastic. Now my foam pad rolls out every time, no fuss. It's like the old saying, fool me once with a cold night, shame on you, fool me twice...well, I'm not getting fooled again.
Have you tried putting a thin closed-cell foam pad underneath the inflatable instead of on top? It traps the ground cold before it reaches your pad and keeps the insulation working the whole night.