I put this under potty training, because that's where my concern is?

I need to get a waterproof mattress bed for a Queen bed that I'm moving L into soon. I've been looking at reviews on Amazon, but it's for adults reviewing it for themselves... not too many adults have multiple MOTN accidents and have to wash it often! (at least I hope...)

We CD, so L does have small leaks some mornings (nothing like a full bladder's worth, though). This will require frequent washing.

Anyone have any good recommendations of good quality protectors that last over time?