2nd Gen cargo measurement?

Hey guys, I was wondering if anyone has the measurements of their 2nd Gen cargo area with the rear seats folded down?

I would go and measure mine but it's not home right now. Trying to find an air mattress that will fit it. Wanting to do a trip on the Georgia Traverse Trail in Sept and making camping plans since my bus will not work in this application.

 

66" length by 50" width at it's narrowest including the humps for the wheels. 37" between the humps. Rough measurement. The humps make it hard to get an air mattress in unless you build a platform for it to go above the humps.

 

Thanks

 

They make air matresses that have cutouts for the wheel wells. I would think a twin air mattress would fit perfect.