Sleep bras are soft, comfortable undergarments designed for wearing during sleep or relaxation. Unlike traditional bras, they typically lack underwire and have a more relaxed fit, providing gentle support without constriction. They are often made from breathable materials like cotton or modal, making them ideal for overnight wear. These bras come in various styles, including bralettes and camisole designs, catering to different preferences. Many women choose sleep bras for added comfort while lounging at home or to provide light support during the night. They can also be beneficial for those who experience discomfort from regular bras while sleeping.