I used to have an Jayco 804 I think it was, I was single at the time and it only slid out on one end. The other end was the dinette with a huge window all around the dinette. My parents used to have one that popped up on one end, it was a hard top with a big piano hinge across the front with a bed that came out the back, do not remember the brand of it though.
13 GMC Denali Diesel Dually
12 Keystone Fuzion 301