Probably it's just me getting older, but I get increasingly more often uncomfortable on the LX airbed seats (even the properly inflated ones). I like the LH topper mattress on long routes, something LX apparently won't consider.

Who of you uses a topper mattress that you bring onto the airplane, and if so, any recommendations? Goal is to make the ride softer, but also to bridge the odd gaps between the airbed zones.

Thanks.