When I only had my Breitling Colt I used to wear it 24/7, never used to take it off. Bed, showers, work, rest, play (including going to the sauna) it was on my wrist all of the time.
Now I have a small collection with a variety of case thicknesses and bracelets / straps I have to take it off at night, regardless of what it is. Not sure why but i just don't like wearing a watch to bed anymore.