Parents spend so much energy shopping for the best crib, the softest onesies, the perfect glider, etc. And yet, the crib mattress is rarely given the same time and consideration, the place on which their babies will spend two thirds of their young life. While there have been many advances to safety and health standards for crib mattresses over the last decade, Nook still offers the most innovative, safe and healthy sleeping environment for babies, eliminating hazards while introducing one-of-a-kind performance benefits.