I was an OTR Trucker for 25 years. I lived in my truck. I had about as much room as a fairly small l walk-in closet...about 8 x 8 x 8...note. cubic footage is more of a realistic appraisal than square footage. I only had about six square feet of floor space. Just enough to stand up and put my pants on. everything else was drawers, cabinets, beds or seats..

Worked just fine. Over a million truckers are doing the same thing right now. Many of them don't have THAT much room. Many run 'team' with two people.