NSAuk is the official UK distributor of the complete Babybay collectionThe NSAuk fitted Tencel sheets are luxurious breathable sheets, made from Tencel ~ 100% natural hygienic nanofibre ~ wonderfully gentle on baby's delicate skin, soft as silk & smoother than cotton. The waterproof back layer ensures the mattress is protected from any leaks, so no additional sheet/mattress protector is required. No need for clammy PVC undersheets. An additional advantage of Tencel (by lenzing) is that it offers optimum moisture management. It absorbs significantly more moisture than cotton and dries more quickly. This helps to control humidity & body temperature. The Hypo-allergenic qualities are clinically proven to suit those with sensitive skin, eczema, asthma and rhinitis, especially suitable for babies soft & delicate skin. pTencel is environmentally friendly, it is made using wood pulp from sustainable sources & all by-products of the process are biodegradable. Our product contains no pesticides or agricultural chemicals. p Manufactured in Spain specifically for NSAuk/Babybay the unique Babybay Convertible Extension sheet fits snugly around the mattress providing that extra layer of comfort.