Experience luxury and comfort with our 25cm / 10" deep Alnwick Spring Mattress. The heavy duty 12.5 Gauge steel bonnell spring provides superior support while layers of comfort foam add extra cushioning. Expertly handcrafted in our OAT Home workshop, it features a quality woven cover, hand tufting, hypo-allergenic materials, silk topping for added luxury and handles for easier maneuvering. Made in Britain for your sleeping pleasure. Our firm / extra-firm mattresses are orthopaedic rated.