I got an extra foam matress for one of the bed in the back of our camper. The standard matress just isn't thick enough to support and adult.
I had to cut the new mattress foam to get it to match in size. What I found works really, really good in cutting the foam is an electric carving knife.
FAA A&P mechanic, ex-RV dealer parts dept
Retired B-52 Gunner/Flight Examiner, B-52 Crew Chief
2016 Jayco Eagle HT 29.5 FBDS w/ 15,000 BTU AC, 50 amp service, upgraded counter top, thermal pane windows, elec. stab jacks, outside grill, backup camera and MORryde pin box.
2011 GMC 2500HD DURAMAX/ ALLISON