We LOVE our Chili Cool mesh mattress pads for our split King bed, second purchase because they are that good!
I'm blown away by how much better my sleep is. I've been tracking my sleep for several months using AutoWake and AutoSleep. Using the ChiliPad has doubled my deep sleep since we've started using it. We're going to buy a second unit for another bedroom. They are expensive, but I wish we had purchased it sooner.