Camplite does make Tip Out Bunks. They generally are listed under the OPTIONS section of their trailers. I poreviously owned a popup camper with queen beds at each end. I can tell you that I had no issues with leaks, bugs or animals getting in my popup. My AC cooled my unit enough even in the warm months for my wife to need a sweater to be comfortable. If you do have problems keeping it cool in the very hot days, there are reflective covering that can be used over the tent ends that help significantly. The other benefit of Tip Outs are that the beds are added floor space, Outside the box. This gives you more walking around space for a trailer the same length that has to have beds inside the box.
The one negative for me was that I had to open the beds usually after returning home to make sure they dried out if they were closed up and put away damp when we left. This can be from dew not having burn off if you left in the AM of if it was damp or raining prior to folding up. With a popup, this was no easy task, stabilizing, cranking the roof up, pulling the beds out, putting the support arms in, etc. With a solid wall tip out like most hybrids have, it is much easier.
Tent ends generally hold up very well as long as they are taken care of in making sure they are dried out. Mold is the bigger issue than them tearing. And if they are dry when put away of dried out as explained above after returning home, they will last you a lifetime barring some major incident such as a tree limb falling through one or some other outside force causing damage.