100% GOTS-certified organic interlock cotton The foundation of a cozy big kid's bed starts here. Our organic cotton single bottom sheet is buttery soft, breathable, and designed to last for years of snuggly sleeps and countless washes. Crafted from durable yet silky-smooth organic interlock cotton, it offers natural stretch for an easy, secure fit on your child’s mattress. Organic cotton is gentle on sensitive skin and naturally breathable to help regulate temperature through the night. Pair with our matching organic cotton single top sheet for a complete sheet set your child will love. Designed to fit a standard single mattress.