Huggies DryNites® Bed Mats Help your child manage bedwetting by improving their sleep, giving them back control and restoring their confidence. Designed for discretion and up to 12-hours mattress protection, DryNites® Bed Mats can be stuck to the mattress under the fitted sheet. So, no matter what adventures their dreams take them on, DryNites® will stay put and protect the bed.