Medela Nursing Sleep Bra, small, white. Nursing moms appreciate comfort while they sleep, yet still need support. This new racer-back design gives plenty of both. The improved fabric blend has unique wicking properties to keep moms cool and comfortable all night long. The seamless design with crisscross front makes it easy to handle those night time feedings. Easy care nylon, spandex blend fabric is machine washable. Tip: Use Medela Quick Clean breastmilk removal soap for safe, effective cleaning of pumping and nursing apparel.