I drive back and forth from Texas to New Mexico and from Texas to Missouri and from Texas to the Florida panhandle. Minimum 10 hour trips and some 14 hours. I need to be able to stop and sleep for a few hours and not make the drive non-stop. Hotels are a pain, especially when you just want to sleep for a few hours. I don't want to pull a trailer and don't want to convert my pickup bed (2014 F150 Crew Cab) into a camper because I use the bed to haul stuff. I have seen hundreds of posts and videos about converting the back seat into a mattress to sleep on. However, I am tall. Over 6'. Cannot sleep on the back seat, even if I try to angle a bit. I want to fold up the back seat on the passenger side, and remove the front passenger seat or maybe just remove the passenger seat back, and put a bed in its place. Maybe build a frame to hold something like a cot. Needs to be low to the floor so I can take advantage of space under the dashboard, so it probably won't work to just put something above the seat itself, like a wooden shelf. That would have been nice because then I just have to store the seatback and I could haul that. I have not seen a single video or article about anyone doing this. If you have done it, or seen anything where someone has done it, I would really appreciate hearing about it.

 

The seatback can't be removed without first removing the seatbase upholstery. So just remove the seat & store it at home. Then check if there's enough room to stretch out comfortably in that space. If not, there's no point proceeding. If there is, start building in cardboard until you have a shape that can be bolted down where the chair was, and a frame that will support whatever mattress or pad you want to sleep on. When you get something that will work, either fabricate it from steel or Aluminum, or pay someone to.