SafeSleep Breathable Crib Mattress, White Base, Light Blue Surface: The breathable baby mattress open cell sleep surface allows baby to breathe freely through the mattress Passive airflow design reduces overheating for a safer, more comfortable sleep Integrated safety welt prevents entanglement and wedging without posing a suffocation or strangulation risk Spring-loaded bars with easy lift and lock system Solid hardwood base The breathable baby mattress features medical-grade spacer fabric with soft, silky surface Machine washable sleep surface prevents growth of harmful bacteria, germs and mold No harmful toxins, nano-coatings or out gassing Firm, comfort contour sleep surface alleviates positional pressure associated with skull deformities The breathable mattress is composed of organic and eco-friendly materials made in the USA Tested by a CPSC accredited lab and proven safer than a conventional crib mattress with fiber fill The breathable mattress has a 1-year warranty Questions about product recalls? Items that are a part of a recall are removed from the Walmart.com site, and are no longer available for purchase. These items include Walmart.com items only, not those of Marketplace sellers. Customers who have purchased a recalled item will be notified by email or by letter sent to the address given at the time of purchase. For complete recall information, go to Walmart Recalls.