Wearing a bra to bed is very unhealthy! Especially if it's one with underwires.
They cut off your lymphatic flow which is also located in the breasts, and by cutting that off it effects and disrupts the entire body's flow. It's got to do with the immune system which then gets disrupted. Especially when a woman is 30+ this flow won't recover so fast or good anymore after it was cut off and at some point it will hardly recover at all...
Massaging the point directly underneath the underwire, in the middle under the nipple line helps this flow but of course won't undo the cutting off from wearing a bra 24/7.
When I did that the first few times, I literally felt relief.

Wearing a bra with underwires is bad because of that as it is, wearing a bra 24/7 is even worse. Your breasts won't sag when you sleep without a bra. Breasts sag because of aging and skin condition an partially the muscle underneath is involved, but not nearly as much as the skin.
If your breasts are still okay you likely have good skin still. Skin is the natural bra. So taking very good care of your skin -inside (food & drink) and out- is imperative.
And likely there's genetic make up at play here too. In tv series/movies I see women around 26 - 28 with small breasts that are completely sagged.

Also, cutting off the blood and lymphatic flow will give you increased chance of breast cancer... I believe it is not scientifically proven just yet, but there is reason to believe this, and fact remains it is extremely unhealthy.

Yoga shorts and a T with a giant coffee mug on it. Had to office on my day off, so was given today off to make up for it. God forbid I go over my 40 and get overtime pay.

Jeans, V-neck T and wearing attitude today too!

Same thing as last time..
Being lazy

Uh oh everyone look out shy boy is sassy today

lol speaking of sassy, nice pic