Bedwitting is soooooo much fun!
Like @Newtopeeing2, I have a full mattress protector. Actually, I have two (slightly paranoid). With this in place, if I decide in the middle of the night that I don't want to get up to pee, I don't have to. I'll just unload it right then, right there, right in my pants.
Other times, I'll plan a bedwetting in advance. I'm planning one for tonight, actually.