Years ago, I slept on my side curled up like I've just witnessed a horrible murder (still do), and the person I shared a bed with was only 5'4/163cm, and slept with their legs elevated, making them effectively shorter. Three dogs and a cat also shared the bed with us, an American queen sized bed.
We turned the bed sideways, used mattress toppers on each of our sides, and that created a spot in the (now much wider!) middle that was shorter than the rest of the bed. Affectionately named the Bed Trench, it was the new home of the pets.
Best sleeping arrangements EVER
This is almost completely unrelated, but your comment made me think of it for some reason, so story time:
Years ago, I worked at a gas station on the night shift. We had these huge wall mounted containers of cleaning supplies, like soap dispensers in a rest room, but like 30 gallons/100 liters, and full of various cleaning supplies that a company came by every so often and swapped the empties for full ones. There were like 5 of em, for use in cleaning different stuff.
One day, they came and swapped em out, and no one noticed that they'd all been replaced with rubbing alcohol until it was already after end of day for the delivery company. It took weeks before we could get them to come back out, and for several weeks I had to mop the floors and clean the whole store with diluted alcohol. It was sparkling clean, but good GOD the head rush. I had to leave the doors open and blast the AC whenever we were cleaning.