Flat sheet to use on top of mattress or as a cover in warmer climates. Suitable for both Stokke Sleepi Mini and other standard newborn size baskets and bassinets.Your little bundle of joy will sleep soundly on our beautiful collection of soft cotton fitted sheets. Made to fit the unique shape of our Stokke? Sleepi? mattress, our 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 sleeping.