Door opens when I get in bed

It sounds like the frame is flexing. Can you have someone approximately your size climb into the bunk while you observe the door? It may give you a better idea of what's happening.

 

On my pop up I need to put a jack stand near the rear to stop the door gap issue.

 

To me, it sounds like the structure of the wall on the front curbside is compromised. On my previous pup, I attempted to crank up the roof after I was told all roof latches were unhooked and it seemed somewhat hard to crank but I kept going (should have checked myself.....arrrrgh). There was a loud bang and I stopped only to realize that the roof was still hooked at that corner. Afterwards, the flexing you described occurred when the front bunk was pulled out and if anyone climbed on it.
Once back home, I removed the outer wall panel and discovered the 2 X 2 framing had cracked from the stress and when there was weight on the front of the pup the whole wall/support would shift.
I repaired the framing with metal strips and glue/screws and reinforced the whole wall section and then put it all back together. We used the pup for 6 more years and never had a problem afterwards.
It sounds like a large repair but really quite easy and inexpensive. Good luck and enjoy your new camper!

 

adding weight to the bed creates a pull on the front wall.
any weakness in the side wall/front wall and this pull causes the walls to move.
some PUs, the side wall lifts from the floor near the door due to old age, rot etc.

 

Do you have four stabilizing jacks or just two? If just two, pick up a couple for the front. They don't have to be attached to the camper. Something like these will work. Set them on a piece of plywood so they don't sink into the ground, and set them at some point near the front corners under the frame. And make sure all stabilizing jacks are good and tight - Not enough to raise the tires off the ground, but enough to stabilize the camper form any excessive rocking.

 

On my camper, I initially thought that it was the front that needed support but it turned out to be the rear.

 

Does the gap get wider as it gets closer to the top of the door? If so, then I definitely agree with the others that have said that the frame is flexing when you add weight to the beds at the ends of the trailer.

 

That could still be the frame flexing, but it seems odd that it would get worse (to open the door) when you put weight on the bunks...

 

Ooh, yes. A broken hinge would definitely do it.

 

the latch is on the bottom part of the door