Sealy Baby Posturepedic Crib Mattress. • Exclusive POSTURETECH® Coil System offers 220 POSTURETECH® coils that sense your baby\'s movement, then respond with increasing support…correct support! • All-around heavy gauge steel border rods maximize side, corner and edge firmness • Steel vertical bars distribute baby\'s weight evenly over the entire surface of the mattress • First non-allergenic layer insulates the mattress for lasting durability • Second non-allergenic layer provides additional support • Third non-allergenic layer offers a plush, gentle sleeping surface • STAPH-GARD® reinforced laminate cover provides an antibacterial and antistatic surface • Tear-resistant cover and vinyl binding wipe clean with a damp cloth • This mattress also fits toddler bed frames • Lifetime warranty on workmanship and materials • Meets Federal Flammability Standard 16 CFR 1632 & California Bureau of Home Furnishings Technical Bulletin 603