Girls one and only! Bra grill!?

Are you supposed to sleep with a bra on or not? I'm a D cup, so if I don't my breasts hurt within the morning. Is there anything bleak about sleeping beside one on?
I've heard that you can take cancer, but it hasn't been proven even so.
I wear an underwire during the day, but I sleep next to a non underwire at night. Best answer get 10 points and a thumbs up. Thx. It's perfectly past the worst. In fact, it's more comfortable to sleep WITH support than lacking if you've got sizeable breasts. I'm an H cup and I don't necessarily wear a regular bra to bed but I do wear either a sports bra or a supportive cistern top made of lycra or some other tight, stretchy material.
You can't bring back cancer from sleeping in a bra. It's completely safe and sound to wear a bra during the night, specially if you are wearing something like a sports bra at darkness.