One of my co-workers today was telling me & another co-worker how she sleeps in a bra every night to prevent her boobs from sagging. I expressed my doubts about this, as did the other co-worker, but she was insistent & saying how her boobs are perfectly perky b/c of it. She is a 30 something DD. She told us that it's true & that it's everywhere online. I might add that she also has not gone through any significant weight loss within the past few years, & has gained a little weight through college if anything, but mostly maintained it. The other co-worker said that she sleeps in a bra as well, but only a sports bra b/c she doesn't like to have them out free at night (she is also a 30 something DD). For smaller cups, I don't think this would make a difference either way, but I am a good 36D, & would love to find any way to keep my boobs from sagging. After searching around on the Internet, I have come to the conclusion that the jury is out. There are some that swear by this, but it seems like there is no real medical truth to this. The theory is that the bra could help keep the boobs in place & keep the ligaments from stretching. However, since you are not moving a lot when you sleep, it's really kind of pointless. The only real way to help prevent sagging is to wear a good supportive bra during the day, maintain your weight, & do your best not to age. Otherwise, age will eventually bring them down. I have a friend who is a very good D cup, who never wears a bra to bed, & has the most perfect, perkiest natural boobs I have ever seen. So, I was wondering what your take on this is. Is there anyone out there who believes & practices this? What is your reasoning behind it? Even if there was some medical truth to it, I don't think I could ever be comfortable wearing a bra to bed. But, that's just me.