Innerspring pocketed coil mattress review

[Bertadel]

Hi All,
I have a 25FB 2008 airstream and ready to replace the mattress. I'm considering the 8" Park Meadow Custom Pocketed Coil RV Mattress II from mattressinsider for about $500-$600. The innersprings seem like a good idea because of air flow. but reviews for regular home bed are low because after a few years they are uncomfortable.
My husband and I camp about 30-40 days a year, we camp in warm and snowing conditions. we are in our 50s and both side sleepers and like support.

Our mattress now is 100 % polyurethane.
pros:it was great for the 1st few years.
cons:It now has lost it support causing me back pain and mold grew under the bed.

I was wondering if anyone has an option about the inner-coil spring mattress. Im ready to buy in the next few days.
Thank You!

[joel]

We bought a memory foam with the cooler top. Since we have twins we opened the fabric and cut the mattress to fit.than re sewed the fabric. Worked great. Sleep like a baby.

[drboyd]

We bought a pocket coil with a firm latex topper for the house, and we absolutely love it.