Your little one will sleep soundly on the Dream On Me Star Light 6 in. 202 Coil Crib and Toddler Mattress. This durable mattress features 202 heat-tempered, innerspring coils and a waterproof cover with lock-stitched binding that resists stains, mildew, and moisture for a healthy sleeping surface. The thick-gauge perimeter border wire gives stability right up to the mattress edge to meet the unique demands of infancy and toddler stage. Ensure mattress covers or fitted sheets are not too tight or loose over a crib mattress to practice safe sleeping.