Yard Chalk White Hebden Washed Cotton Fitted Bed Sheet. Plain. 100% Cotton. Minimalist. 144 Thread Count. Cotton. 100% Cotton Percale. A washed cotton fitted sheet perfect for layering. Crafted from 100% cotton percale for a soft feel. 100% Cotton. 144 Thread Count. Our Hebden washed cotton fitted sheet creates the perfect base for laid-back layering. Crafted from 100% cotton percale and garment-washed for understated, touch-worthy softness, it feels as good as it looks. Relaxed.