Buy yourself a 3" thick memory foam mattress topper...Thats what we did with our last 5er and transferred it to our new one...Our's is a King size and we had to cut some off length wise...Cost a whole lot less than a new mattress and it's GREAT to sleep on.. Have had it 2 yrs. Got it at a Sams Club for about $125.00..Best bed upgrade we've ever done. Queen would be cheaper.
Jim & Kathy
2016 Ram 3500 DRW/crew cab/long bed/4X4/Cummins/Aisin/4.10/rear air assist. Pearl White
2016 Jayco Seismic 4112, WD/Trav'ler Direct tv SWM satellite, slide covers
B&W RVK 3600 hitch
USAF Viet Nam Vet