The only trailer I can think of, at this size, that would possibly come close to this is the Lil Snoozy
. No door, but more of a sleeping berth. How quiet you can make the snoring would have to do with the weight
and insulation in the "curtain."
Next up with be the Scamp
5er and Escape
5er (and possibly a Bigfoot
5er, but you'll only find one used). Due to the main sleeping area being in the loft. You might be able to "block" the snoring.
You need to know these trailers have very small cabins, and they're more a "great room" layout, where everything is visible. The only "room" would be if the trailer had a bathroom.