Honestly as a kid I thought I had opened a wormhole in my bedroom. I was sleeping on the floor on an inflatable mattress which had an attached bedsheet that didn't come off. During the night I turned on my side, flipped the bed, it hooked onto the wardrobe door handle and I was suspended upside down diagonally.
I'm convinced bedding defies physics at this point.
No idea how I did it, all I remember is waking up very confused. It was an air mattress that didn't inflate properly and I had a habit of sleeping on the edge which I'm guessing is how I did it?