Does anyone know what GD uses as their stock Queen mattresses? Specifically for the M399th?

I would think they would use the same mattresses across all their product lines for an economy of scale, but who knows?

I'm thinking about having them delete the stock mattress on our build, because RV mattresses in general tend to be not so hot. It doesn't make much sense (to me, anyway) to buy a mattress I'm probably going to hate and then have to dispose of.

I'm open to all ideas.

TIA!