I just purchased a Thuma bed for my 7 and 5-year-old and need a mattress that goes with this bed. They’re potty trained but still don’t want to go over the top. Any suggestions?
Hi erdocss.
Welcome to our Mattress Forum. 
To clarify, is it a waterproof mattress cover you’re looking for? If so, there are many options. My personal favorite is this one which I use for my own bed.
Or are you looking for a mattress for yourself that you can feel good about letting your kids sleep in with you without lamenting the price tag?
NikkiTMU
No, I’m not looking for a mattress for me or a cover. My kids sleep together and are inseparable. So I figured I’d let them share a big bed
for another year or two. I’m looking for a mattress 10-12 inches thick and under 1500
Thanks for clarifying, erdocss.
While I can’t tell you exactly which mattress to buy, I can certainly give you some tips! If you haven’t already, you may wish to read this article on sleeping positions and the various needs related to comfort layers. We’ve also got a great Mattress Shopping Tutorial.
Without knowing more specifics of what you’re looking for, it’s hard to make even a basic recommendation (firmness level, hybrid vs innerspring, latex/memory foam, etc) but I can tell you that our Trusted Members are expertly vetted for durability and transparency as well as knowledge in the mattress industry and customer attention. You may find a great contender with one of them.
NikkiTMU