Experience an effortless night’s sleep across all seasons with Sheridan's Deluxe Wool underlay. Our premium Deluxe Wool underlay is made from 100% Australian MycraLoft® Wool fibre. This new wool technology fibre offers enhanced insulation making it suitable for all climates and seasons. The MycraLoft® Wool’s balanced thermal insulation properties keep you comfortable all year round. Featuring 100% Australian MycraLoft® wool fibre The Deluxe Wool underlay is fully reversible, with MycraLoft® fibre featuring a high loft that maintains the fullness of the underlay and is designed to be fully reversible. When reversed with the wool fibre faced down, the underlay adds an extra cushioning layer for added comfort. Covered in a high thread count cotton sateen fabric for extra luxury, this beautifully designed underlay also features a fully fitted interlocked elastic cover to fit even the deepest of mattresses.