Comfort and durability will spell the quality that this Foundations DuraLoft 4" Innerspring Compact Crib Mattress is made of. This 4" thick mattress is compatible with Pinnacle Compact Crib. Proudly made of heavy-duty commercial grade vinyl cover which is non-allergenic, resists mildew and moisture, but cleans easily. It has a special locking-stitch design eliminates risks associated with fraying. Foundations products are designed for safety, comfort, and convenience with the unique needs of child care and hospitality as the first priority.