Manspreading in Public, Womanspreading in Private

"Manspreading" is the tendency of some men to spread out and take extra space in public - on a subway bench, for example.  This is a real phenomenon, and the public-awareness campaign to encourage men to be more restrained is sensible.

Less noted is what I think should be called "Womanspreading" - the tendency of some women to take extra space when sharing a bed.  A humorous representation of the phenomenon is here:

I think there is a parallel phenomenon of "mansplaining" in a public setting, and "womansplaining" in a private one.