Caravan for 3.

Tow vehicle?
New or secondhand?
And their budget is??

You can get one with a table that lowers to fill the gap between the cafe style seating and it can be made up as a small bed. You might have to order it or convert it if buying second hand.

If you want a caravan of that size (16') it will be difficult to find one with a queen size bed and a bunk bed. Most vans nowadays have ensuites which have a separate shower and toilet, and most also have beds north/south which means precious little space in the middle for another bed. Even if the bed was east/west there still is generally not enough space to have another bed. To get the extra bed you will probably need to go to 18-19'. This of course will be bigger and heavier and will then be a tandam wheel set up.Older vans may combine a toilet in the shower to save some space. The only other alternative would be some of the hybrid vans/camper trailers which have an external shower, and porta poti. But 1st thing to establish is what you current Tug can tow and see if there is anything around within those specs. If not you might be up for more than just a new van.

I have a New Age Manta Ray deluxe which is 16' but there is no way an extra bed /bunk could fit in it.

I note that some people have advocated certain brands. Without naming them I suggest you do due dilligence and investigate thoroughly their quality of finish and fit for purpose. Some are imported chinese chassis and the quality is certainly questionable. And I am certainly not saying mine is the "best". I have spent considerable time to make mine off road durable.

Thanks guys for your comments I will pass them on. Brian DJ

Saw one of these the other day, pretty impressed and has a number of layouts for a small unit.https://www.lifestylecampertrailers.com.au/