Hi - I am new to this. So new that I haven't yet taken possession of my 2021 Transit Connect xl. That should happen in the next 2 days. I want to put a mattress in the back. I spent hours on Amazon and found 3 tri-fold sofa/beds with a 48 inch width. The lengths vary. Then I found this form and I see some tri-folds used as beds but the width is grater than 48 inches and they look squeezed in. Now I'm wondering what I should do. I will have sliding doors on both sides of the bed and I thought the width of the interior is 48 inches. I would appreciate some insight. We are not doing a conversion but want to be able to car camp occasionally. Thanks