Sleeping with a bra on is not generally recommended for several reasons. Tight or underwired bras can restrict blood circulation and lymphatic drainage, which may interfere with the body’s natural detoxification process around the breast area. Constant pressure and friction from wearing a bra overnight can also lead to skin irritation, such as chafing, indentations, or even breakouts. Additionally, bras with hooks or tight straps can cause discomfort and disrupt your sleep. It’s also worth noting that there’s no scientific evidence that wearing a bra while sleeping prevents sagging—factors like age, genetics, and pregnancy play a much bigger role. If you do prefer some support at night, it’s best to opt for a soft, breathable, wire-free sleep bra designed specifically for comfort.