Kids growing up and we want to downsize

Thanks everyone for the ideas! I almost wish we could have two RVs! One for 'with adult kids' and one for 'without' because like someone above said, to get a bed that fits an adult other than the main bed, you seem to have to stay around the 28ft or face the coffin issue. Doug, that's exactly the type of second bed we want to find. Our boys are all tall like Dad except the oldest (who is also the only willing to sleep in that one small twin in our laredo). They range between 6' to 6'2. I see quite a few of these lite trailers also have the main bed at a 74" length also which wouldn't be too comfortable for 72" hubby. We're going to have to do some thinking on what we are willing to give on and what we aren't.