Do mattress toppers make that much of a difference.

YES. The simplest thing to do is get rid of the mattress and buy a 6-8" foam mattress.

I would NOT want to be sleeping on someone else's 7 year old mattress. YUCK.

Yes. Get rid of the mattress, and get a foam one. If necessary, a foam one can be cut off to fit the RV bed better. Use the cut-off to make pillows or roll cushions.

A new mattress may be the way to go,but I found that it was really hard to find one to try out first,it is the short Queen.

My RV came with a brand new mattress,still wrapped from Mfg. but it was really hard and I looked at getting another one but instead went with a Foam Topper

It made all the difference in the world,it is the best sleep I have had away from home.It doesn't make you hot like some I have slept on,it breathes really well. Cheaper than a new mattress and no trying to get that old one out and a new one in.

They really do make an incredible difference. Our TT had a super cheapo mattress but a 2" topper made it feel great.
A couple of caveats though; The topper was always trying to move around and it also shrank a bit so that it didn't cover that last 3" of the sides of the old mattress.
We eventually bought a high quality 10" thick memory foam mattress from an on-line store that specialized in RV mattresses.
If it were me, I would spring for a new one in a used rig.

How do you keep a foam topper from shifting around?..

Yes a topper works. It is worth a try. We use one on a ten year old Rv mattress, and on our 15 year old latex house mattress. Great comfort now. Buy

I would want a new mattress but I can also vouch for the mattress toppers. My mattress is foam but very firm so I added a 2inch topper. Now it's perfect. I got the topper first to lay over the dinette bed which is made up from the dinette cushions. It worked great there so I tried it on the rear bed. Then I got one for my bed at home. So I'm a believer.

clarkster wrote:
How do you keep a foam topper from shifting around?..

I went with a mattress protector like having a fitted sheet over it. It keeps the foam topper from moving,I went with the waterproof one,no telling what the Grandkids will do :B

coolmom42 wrote:
YES. The simplest thing to do is get rid of the mattress and buy a 6-8" foam mattress.

I would NOT want to be sleeping on someone else's 7 year old mattress. YUCK.

I chuckled at your comment, I guess you never stay in hotels. Do a search on how often hotels change theirs. I purchased the coach from the original owners and it was used very little.

We have the same mattress that came when we bought the new RV some 12 years ago. We use a foam topper and have replaced it every few years. I trim it to the same size as the mattress and it doesn't seem to move around at all.