This makes the second sleep system that we have gotten from you. And the third mattress. We were very pleased with all three. My queen size was is perfect and I sleep well, no back aches with 8-10 hours of sleep.Looking forward to the Accu-Gold Memory Form 8-inch King size RV Component Sleep System use in our RV this coming year. Very good, very nice to sleep on. Thanks for the RV sizes.