How long after breast augmentation do I have to sleep with a bra?

Every patient is different and surgeons have different feelings on the use of postoperative support brassieres. Often, a bra has several functions. It can be used to help maintain the surgical pocket that the implant was placed into. It also serves to hold gauze and other bandages to help pad the breast following surgery which some feel comfortable. Sometimes, just the mere fact of wearing a bra makes it more difficult to turn over in your sleep in the early time. Following breast augmentation. It is always wise to follow your surgeon's advice. He or she should have reasons to explain to the result. It is uncommon to have to wear a bra after five or six weeks.

The answer to your question should be obtained from your Plastic Surgeon that performed your surgery.  They will explain the reason and length of time expected of you to obtain the best result.  Good luck.