The Breeze Breathable Crib Mattress Topper by Delta Children transforms any mattress into a breathable, comfortable sleep space for your baby. Featuring an ultra-breathable mesh cover with a quilted top, it’s designed with an innovative Cloud Core that boasts open-air construction for continuous airflow. A waterproof layer adds an extra level of protection. Unlike other toppers, the Cloud Core provides an added layer of comfort while helping regulate your baby’s body temperature and reducing the risk of suffocation. Easy to use, simply place the topper on your crib mattress and top with a fitted sheet. It fits standard-size cribs and toddler beds, making it the perfect addition to your baby's nursery.