getting a 36 ft tt

Our current TT is 37ft bumper to bumper. our previous TT was 33ft. we have not stayed in national parks but have stayed in many state parks, private campgrounds, and koas. never had a problem with site lengths but i always plan ahead and make reservations far in advance. if camping weather was always perfect i would love to have a 20ft camper. other than sleeping and bathing most time would be spent outside.just DW and 4 small dogs on our trips. we glamp 12 months a year so when its cold, extra hot, or raining its nice to have 3 slides and space to relax in. not sure if your towing vehicle is gas or diesel but if its gas like our ford f250 gas stations can be a challenge. on longer trips i scout ahead on google earth for larger truck stops. never ran out of gas because i couldn't fit. gotta have alot of room to backup a 37ft TT properly but with experience its not that bad. wife and rear view camera help.