Gave up and added a cut up yoga mat under the middle section to adjust height difference. Added a Outwell Dreamboat Campervan Air Mattress on top of the foam and then a snuggly topper too!

Now we’re super comfy.

https://www.autoleisure.co.uk/outwell-dreamboat-campervan-airbed?srsltid=AfmBOoohy5jo9YjKrkf-tU3e2FwrZBLmPEFUHcYcQRaFbc9T-hVB2rqE

https://amzn.eu/d/j0cO0dn

https://amzn.eu/d/9myRoSl