Well of course Bambinos are unlikely, silly! They're made for *B/DLs, not simply bed wetters.
Goodnites seem to be the staple as far as bed wetting diapers go, so that's off the list. Pull-Ups are next down the line because they are an "older" diaper, but a diaper nonetheless.
After that we have baby diapers, the usual suspects of Pampers, Huggies, and Luvs (my personal fav). These are unlikely to be purchased, either because they don't fit, or because they are simply too babyish to be desirable choices for bed wetting. Still, choices they remain and although uncommon (though not unheard of), baby diapers are worn for bed wetting.
Next up we have adult/teen diapers. These are Walgreens/CVS/Medical supply store/Intrawebz purchased. Although better for holding in accidents, they are much much more "diaper-like" than Goodnites. If the person in question is a casual wetter, they're not going to want to wear a
diaper, rather they'll want to wear
disposable underpants (Still not fooling anyone, deary

).
And then there comes the specialized diapers, Infantilist diapers. Bambinos place second here, as they are disposable. Simply meaning a more viable option for a bed wetter.
The most unlikely, I think, would be an adult cloth diaper, Babykins or the ilk. If someone wets the bed, they wouldn't want to go through the humiliation of not only wearing a diaper, but wearing a
cloth diaper as well.