Designed to fit any standard full-size baby crib and toddler bed (52 in x 28 in); For optimal performance, open box immediately upon delivery and allow mattress to expand fully for up to 48 hours ...

FIRM 2-STAGE BABY MATTRESS: Passes ASTM and federal safety standards to ensure proper crib fit and firmness to help reduce the risk of suffocation. Firmer infant side flips to toddler mattress ...