It's only been the last 10 years, (been with DH for 30 years,) but I have actually got my own room now - since the kids left home. It's been absolute bliss. I will NEVER share with DH again. He snored from about the age of 32-ish, when we'd been together about 10 years.
It got to the point where I was actually feeling violent and aggressive and distressed and depressed and so fucking TIRED and angry - at how his snoring kept me awake. And even if I dropped off for half an hour, his snoring would wake me again! He would never ever bother doing anything about it and just said 'I can't help it.' 
I spent so many weeks and months, and years, spending 50% of the time sleeping on the couch - just to try and get even four or five hours straight through sleep.
It's not just the snoring. I actually feel really uncomfortable sleeping next to DH at all now. His moving around the bed, tossing and turning, his grunting, his stinky farts, his coughing, his thrashing his arms about, his heavy breathing, and obviously his snoring. Absolutely hate it.
It's so amazing to HAVE MY OWN ROOM. I will never go back. I also have a white noise machine to cut out any noise, like the church clock, the birds tweeting at 6:00 AM, and any noise coming from DH's room next to me. Absolute heaven.
When we go on holiday, we pay an extra 150 pounds to have a bedroom each. Last time we went, we had three or four married couples really disgruntled because they didn't realise they could do that. The women had to put up with vile snoring from their grunting husbands, while I had an absolutely lovely sleep in my own room. Hell will freeze over before ever share a room with DH again or anybody. Even if I had a new relationship. I would never, ever share a bedroom with anybody again. I can only sleep on my own.
I believe a couple sharing a bed is very outdated. Weird as fuck really, two grown-ass adults sharing a 4 foot X 6 foot bed. Batshit if you think about it. SO uncomfortable, so hot, not enough room, and not enough sleep. Sleep deprivation is a form of torture, yet some people still buy into this 'MUST SLEEP WITH MY SPOUSE' bullshit. No. Never again. Even in a bigger bed - like a Queen or King, you are STILL having to tolerate his snoring!!!