Laredo 303TG Bunk Mattress Sizes

[Yamatime]

Hey all - I'm brand new to the forum. Just bought a 2013 303TG TT. We got a great deal on it, but the former owner took some stuff out of it before the bank took it back. He took the top 2 mattresses out of the bunk house and the grill for the back bumper. I am wondering what size mattresses I need. I measured the beds and the one on the right that folds up measures 28 x 70 inches. I am having a hard time finding a mattress that size. Could someone measure their mattresses and post the sizes on here so I know I am getting the right ones. Also - what brand/model is the grill? He also took the bracket that hooks on to the bumper mount.

Thanks ahead of time!!!

Joel