Set Includes Stokke Sleepi Fitted SheetFeatures Your little bundle of joy will sleep soundly on Stokke's beautiful collection of soft cotton fitted sheets Made to fit the unique shape of the Stokke Sleepi Bed Mattress (sold separately), these sheets offer ultimate comfort and are gentle to your newborn baby's delicate skin Elastic all the way around ensures a snug fit for safer sleepingSpecifications Suitable for children from 0 to 60 months Compatible with the following (sold separately): Stokke Sleepi Mattress Manufacturer's 1-year warranty