The Sealy cozy cool hybrid 2-stage coil and gel crib mattress combines the best of both worlds with its innerspring coil system and cozy cool gel memory foam topper. The CoolTex two-tone cover is soft and luxurious helping to enhance the cool feel of the gel underneath and keep your baby comfortable. The infant side of the mattress is firmer with hypoallergenic cushioning and an antisage weight distribution system while the toddler side is softer with the cool gel memory foam. The core of the mattress offers 204 coils plus a high gauge perimeter border for firmness all around. The PVC cover is liquid and stain resistant due to the lock stitch binding that will not unravel or trap liquids. It is also GREENGUARD(R) Gold Certified for indoor air quality and low chemical emissions which help create a healthier sleeping environment. Dimensions: 5.5H x 27.3W x 51.6D. Limited Manufacturer’s Warranty. This item requires oversize delivery. Please refer to the Order Summary in the Shipping step at checkout for delivery charge.