When your new mattress arrives, it will be tightly wrapped. Remove it from its packaging within 72 hours of arrival and allowed it to rest and expand for 48 hours to attain its maximum loft. Allow time for this mattress needs to air out after being unwrapped. Any plastic odors will quickly dissipate. Use this mattress with slats, a box spring foundation, or a platform bed! Dimensions Twin: 74L x 38W x 11H in. Full: 74L x 53W x 11H in. Twin X-Long: 79L x 38W x 11H in. Queen: 79L x 59W x 11H in. King: 79L x 75W x 11H in.

When your new mattress arrives, it will be tightly wrapped. Remove it from its packaging within 72 hours of arrival and allowed it to rest and expand for 48 hours to attain its maximum loft. Allow time for this mattress needs to air out after being unwrapped. Any plastic odors will quickly dissipate. Use this mattress with slats, a box spring foundation, or a platform bed! Dimensions Twin: 74L x 38W x 11H in. Full: 74L x 53W x 11H in. Twin X-Long: 79L x 38W x 11H in. Queen: 79L x 59W x 11H in.