I'm a noise-sensitive/averse person also. And late to this thread! But I have read through the thread and I think I have a couple of thoughts not mentioned.
My first thought is, can you arrange things so the room you sleep in is not directly below the bedroom of the people above you? I'm thinking, put a Murphy bed in the living room, or maybe a sleeping chair, something of that nature.
Second thought is noise-cancelling ear buds or headphones, provided you can find a pair that fit comfortably and don't interfere with your preferred sleeping position. I occasionally wear my Bose noise-cancelling headphones to be able to get to sleep on "active" nights in my neighborhood. I prefer to sleep on my side but to be able to get to sleep at all, I'll suffer propping up on a couple of pillows in a semi-sitting position with the headphones on. They do a great job of cancelling out the thump-thump of the subwoofers of the people that visit my street late at night to enjoy the view of the city and disrupt the peace and quiet.
I realize your problem is
staying asleep when the noise starts, so likely this isn't useful, but it
is the same kind of noise as what's bothering you. (I wonder if any enterprising tech company makes a whole room noise-cancelling system? I'd buy one in a heartbeat!)