Features: -Simmons Genesis Deluxe Organic Crib & Toddler Mattress -Superior Firmness(super firm core) -Deluxe organic cotton cover is chemical free and makes for a better sleep environment. -2-in1-firmness for infants and toddlers (2 sided with super firm side for infant and a more comfortable side for toddler -No flame retardant chemicals added -Fabric and Foam is Oeko-tex certified -Easy setup: Open and unroll the mattress, allow up to 48 hours for proper expansion before using and mattress will expand to 52in x 27in. -Fits most standard full-size cribs and toddler beds. -10 year warranty Box Dimensions: 31x10x10” Weight : 10lbs.