I went full circle...and am back to foam. Three Thermorests, all serving me well, all eventually leaked over the years, have been replaced by Ridgerests. Ridgerests seem warmer, don't slide around in my hammock, do double duty as my pack frame, can't go flat, are much lighter, and cost 1/4th what inflatables cost.
I'll use the Thermorest inflatables when sleeping on a hard floor, or in the back of the SUV.