[blessedbreasts]

Yes your bras are more likely to weaken what holds your breasts up as well as distort the shape if your sleeping in them(unless its a proper sleep bra) because wearing a regular bra in bed won't help anything the bra doesn't sit properly while lying down so will push tissues gradually from breast and reduce circulation.
OK my breasts are big about 30gg I go more or less braless most times a little more with a bra during winter and they have if anything got perkier from doing this about a year.

Wow, Bonita, that's great! Do you do any kind of exercises for your breasts, though? Do you use an suction device? Because I know that helps a lot with perkiness.