U by Kotex Overnight Extra Pads provide mega protection that hugs your body for ultimate comfort. Overnight is just a little bit longer, a fraction wider and equipped with Anti-Leak Guards (side and back) for helping prevent leakage when you're lying down. So enjoy that beauty snooze without a worry. Fast Absorbing Blue Core With fast absorbing blue core to provide greater protection by quickly drawing fluid into the pad Extra Length & Width With extra width and length for added overnight protection Anti-Leak Side & Back Guards With anti-leak side and back guards that activate when in contact with fluid to provide superior leakage protection Soft Cotton-Like Cover With a soft cotton-like cover for a dry, comfortable feeling, and wings to help keep pads in place Perfect for heavy flow and overnight use.