Why only one bed in a fifth wheel and why sooo tall?

Because at 50+ years old we like 2 leather recliners to relax in while looking out the rear living room window and a residential mattress to sleep on at night to rest old bones. To have room to use the relief facilities and a stand up full size shower. 5th wheel trailers look high but when parked next to most DP motorhomes are the same height with a maximum of 13'6" as per DOT North American standards. Because we love company visiting on lawn furniture outside in the nicest places for the season.