Silentnight Anti Allergy Ultimate Mattress Topper - 12cm Ultra Deep - Anti-Bacterial Dust Mites & Odour Protection - Luxury Fibadown™ Fibres & Box-Stitched Edge - Quilted Cover and Fit Straps, Double

• DEEPEST COMFORT, STRONGEST PROTECTION: A generous 12cm fill depth with a luxurious quilted cover delivers cloud-like cushioning while helping maintain a fresher, more hygienic sleep space.
• ULTIMATE CUSHIONED COMFORT: Rejuvenate your mattress with an indulgent layer of cushioned comfort. The quilted cover with internal walls keeps the anti-allergy filling evenly distributed, while box-edge stitching helps maintain plump, supportive comfort right to the edges for lasting support.
• SUPERIOR FRESH PROTECTION: Our superior anti-allergy fibres actively protect against dust mites, bacteria and odours, providing just-washed fresh comfort night after night.
• ANTI-ALLERGY GUARANTEE: Proud to be tested and approved by the British Allergy Foundation. Only this seal of approval guarantees true allergy-friendly bedding. Scientifically proven to remove allergens and 99.9% of bacteria - ideal for allergy and asthma sufferers, and those with sensitive skin.
• LUXURY FIBADOWN FIBRES: Crafted with luxurious down-like Fibadown fibres that are soft, bouncy and remain evenly distributed, keeping your topper feeling plush and plump, for dreamy comfort. Elastic straps keep your topper securely in place for a no-slip fit. Fully machine washable with a 2-year manufacturer’s guarantee.

The Silentnight Anti-Allergy Ultimate Mattress Topper is generously filled with high-performance anti-allergy Fibadown fibres, designed to actively protect against bacteria and dust mites to help prevent allergies and create a cleaner, healthier sleep environment. Inspired by the luxurious softness of natural down, Fibadown fibres deliver a wonderfully plush, lightweight feel while maintaining breathable comfort and long-lasting support. With an indulgent 12cm depth – our deepest design, this topper delivers exceptional cushioning and elevated comfort, helping to rejuvenate your mattress with a deeper layer of cosy support. Designed for comfort from corner to corner, the generously filled quilted cover is enhanced with box-stitched edges and internal walls to keep the anti-allergy filling evenly distributed. This helps maintain lasting loft, edge-to-edge support and a consistently plump, supportive feel across the entire sleep surface. Our advanced anti-allergy fibres are approved by the British Allergy Foundation, carrying the ultimate seal of approval for trusted protection against allergens. Fully machine washable at 40°C, it’s designed to help keep your bed feeling fresher, cleaner and more hygienic for longer. This product contains a biocidal ingredient with anti-bacterial properties that protects against fungal growth. The active ingredient is Dimethyloctadecy (3-(trimethoxysilyl)propyl) ammonium chloride. As the UK’s most trusted sleep brand, Silentnight brings over 75 years of expertise in creating premium sleep solutions designed to help everyone enjoy a deeper, more comfortable night’s sleep.