The Stokke® Sleepi™ mattress core (Launched September 2022) is made of 40% Sorona® Bicomponent Stretch fibre which is made from bio-polytrimethylene terephthalate (PTT) obtained from the fermentation of glucose of corn seeds. Because Sorona® polymer is partially plant based, it reduces reliance on fossil-based materials. The revolutionary Bio-PDO compound turns a formerly chemical process into an eco-efficient biological one.
The Material is also naturally fire retardant, breathable and provides a firm mattress surface.
Sorona® fiber has undergone stringent testing and has been proven to be safe for use by adult products with direct, prolonged skin contact, earning it Class l certification from Standard 100 by OEKO-TEX®. Sorona® renewably sourced fiber is one of the first 11 products approved as part of the United States Department of Agriculture (USDA) BioPreferred Program for certified bio-based products.