Keep your bundle of joy comfortable all year long with the soft, breathable Classic Crib Sheet from aden + anais. ; Warm in winter, cool in summer. ; Open weave allows breathability. ; Tailored fit. ; Softer with every wash. ; 100% cotton muslin. ; Machine washable. ; Imported. ; This product may have a manufacturer's warranty. Please visit the manufacturer's website or contact us at for full manufacturer warranty details.