Wrestling with the Alligator

We replaced ours with a 6" memory foam mattress, which was the best compromise between comfort, weight, and the ability to move it to get to the valves, added storage, battery, etc. I am the one who makes up the bed, and yes, it is tough to make the bed. My wife made the flat top sheet a fitted sheet for the foot end which makes it a bit easier. However, it is hard to get the sheets tight when one has to be crawling on them to get the back, head, and foot ends tucked in. So while the alligator might not win, it puts up a good fight.

We replaced an OEM mattress with a "short" queen [60"x74"] that we got on Amazon 3 years ago and it has been a very good value.  It makes our trailer bed one of the most comfortable beds I have ever slept on.  The price has gone up a bit, but it still a good deal.  https://www.amazon.com/gp/product/B07J5HX864/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

We replaced the mattress in our 179 with an 8" from Wilderness Mattress I believe. Was it expensive? Yes. What is a good night's sleep worth to you? Since then we've taken a number of multi-week trips and when we get home, we actually miss our RV mattress.

+2  Cannot put a price on a good nights sleep and proper support for your body while sleeping.  After 3 sleeps on our original mattress we purchased an 8" Eurotop, not cheap but well worth it.  Have had it for over 11 years now and is still just as firm and comfortable as the day we got it.  Average 40 - 50 nights/year with it so it gets a fair amount of use.

I found a simple and cheap improvement by sheeting only the foam topping we bought a couple years after sleeping on the original mattress. Much simpler that trying to sheet the two as a stack by only making up the top layer and letting it rest on the unadorned bottom mattress as if it is a box for the mattress above. This takes me half the time and stays in place no matter how much tossing and turning.