Sealy’s Baby Soft Premium Crib Mattress has all-around Border rods to keep sides, corners and edges firm for as your baby starts to become more active. Steel vertical bars distribute your baby’s weight evenly vver the surface of the mattress. Entire -Mattress Wipes Clean With a Damp Cloth. STAPH-GARD® treated cover effectively inhibits bacterial growth on the surface of the mattress, so you can rest easy knowing your baby is sleeping safely. This Mattress Also Fits standard sized Toddler Bed Frames.