With my sleep-apnoea and subsequent snoring, I swallow so much air during the night that the first thing I have to do in the mornings is to go to the loo and let rip. I look like I'm pregnant in the mornings. Luckily I live alone otherwise the woman in bed will have to endure some mighty strange noises.
When I buy a house one day, a major factor will be whether there is a toilet on the other side of the house, far removed from any bedrooms.