Northwest Hiker toowrote a review of Big Agnes Insulated AXL Air Sleeping Pad on July 29, 2019
Familiarity: I've used it several times
light weight, packs small
Was comfortable in night time temps in the low 50's
Does not feel like there's any insulation.
I had a 1/8 in dense foam pad between my tent floor and BA ALX pad.
Nighttime temps got into the high to mid 30's and the cold radiated up thru the mattress. I had to wear every piece of clothing I had packed and was on the edge of shivering for a two night backpacking trip. I would recommend the BA Q-Core Deluxe pad when backpacking in temps under 50 degrees.