1 / 6Wearing a bra while sleeping is totally fine only if you’re not wearing the tight ones. Bras, which are too tight, tend to hurt the breast tissue and don’t let your skin breathe.2 / 6Bras are usually snug fit. If you wear them for a long time, they may cause discoloration, dark spots and in the worst case even skin rashes.3 / 6 Bras, mainly with underwire ones could affect the blood circulation. The wire also compresses the muscles around the breast area and affects the nervous system. 4 / 6So if you’re planning to wear a bra to bed, make sure you pick a non-padded, non-wired one or best would be a low impact sports bra or a slip-on bra so that you have a comfy sleep minus the pokes of wires and hooks.5 / 6A common misconception about wearing a bra while sleeping is that if you wear a bra at night it restricts the development of your breasts. 6 / 6Well, us tell you this is so not true, your breasts stop developing post-adolescence. There is no way a bra could hinder growth or development especially when it has been designed to support and shape the breasts.