Best RV King Size Bed

Try to check out Sleep Number and Zinus.

Check out the Brooklyn Bedding Wanderlust RV mattress.

Check measurements!!
The King you have may be a bit smaller than what you think it is!
(Mfgr's specs may vary!)

Then go check out various beds at brick & mortar stores.
Stretch out on them the way you sleep, on your back or on your side.

*If* you prefer a bed in a box - make sure the mfgr offers a "test" period with free return.

Choose what you like - rather than folks on an internet forum!

Happy - - :Z..:Z

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Fulltiming with King Sleep Number since 2011. Was in home prior to that. No more sore back!!!

We have a Sleep Number at home set to 95 (we like it firm). We have the Amazon Zinus queen firm bed from Amazon in the 5th wheel and love it. I'm not sure how it would hold up to full timing but, for occasional use, it seems to be working fine.

I replaced mine with a mattress from Mattress Insiders. Liked it so much I had them make one for the boat that was an odd shape, sent a template and had it within 10 days.