Thank you for sharing that @shays4me ! I'm amazed all of that fits! I may just expand mine to 4". When I met UM John and asked him about it he thought about it for a moment and said that it would definitely work with an extra inch (3" total). I thought about just adding foam on its own, but I want a professional solution for this so that looks and performs as though it came from the factory.I have 5” of foam in my mattress. I used the original mattress and then stitched two mattress toppers together for the top. To hold it all together my aunt and mother sewed me some slip covers out of full size sheets with Velcro closures so I can toss them in the washer. It all works really well and sleeps nice, even when I weighed 230. I keep a king sized comforter, top sheet, wool blanket and a microfiber blanket upstairs as well as a big pillow. It all fits!