I deduce you sleep in it while it's hitched to the bike. Does that feel stable when you're in bed. Similarly, I'd imagine you'd need to be careful how you climbed into and out of bed. Be sure to take the keys inside with you. Might be a rude awakening if someone rode off with you in the cot!
Looks like a great arrangement.
I wouldn't like to sleep in the Elite Camper with it still attached to the ST. It wouldn't seem stable enough, even with the rear stabilisers extended as it doesn't have a front wind down jockey wheel fitted (I have bought one, but it still sits under the garage bench). It only has a flip-down, lock-in front stabiliser which can't flip down when attached to the bike.
A close look at Johnny's coffin, and I can't see either. I wouldn't like to sleep it in attached to the bike. Show us some close ups Johnny, and I might change my opinion.
The above is premised on sleeping solo, if I have company and get lucky (nudge nudge, wink wink, know what I mean), ALL stabilisers would be needed.
Okay, I'll be off to the naughty corner for a bit.