I’ve been using a memory foam mattress topper combined with various thermarest pads in my subaru for years. They did the job, but I finally got tired of dealing with the multiple pieces in my setup and memory foam getting packed out. I looked at the Lunolife air, but went with the deepsleep because it has insulation. The luno is just an air mattress, and i get cold on air mattresses in houses. I’m so pleased with the deepsleep. I slept on it on the floor in my house for a few nights - it’s better than my regular mattress! I have yet to use it in my car but I have no doubt it will work great.