--- product_id: 159703934 title: "Deluxe Mattress Topper King Bed 4-5 cm - 1000gsm Certified Hypoallergenic British Wool 200tc Organic Cotton Bed Bug Resistant - Extra 100% Natural Premium Comfort" brand: "woolroom" price: "$815.29" currency: USD in_stock: true reviews_count: 8 category: "Woolroom" url: https://www.desertcart.us/products/159703934-deluxe-mattress-topper-king-bed-4-5-cm-1000gsm-certified store_origin: US region: United States of America --- # 1000gsm British wool fill Natural temperature regulation Allergy UK & OEKO-TEX certified Deluxe Mattress Topper King Bed 4-5 cm - 1000gsm Certified Hypoallergenic British Wool 200tc Organic Cotton Bed Bug Resistant - Extra 100% Natural Premium Comfort **Brand:** woolroom **Price:** $815.29 **Availability:** ✅ In Stock ## Summary > 🐑 Elevate your sleep game with nature’s premium comfort layer! ## Quick Answers - **What is this?** Deluxe Mattress Topper King Bed 4-5 cm - 1000gsm Certified Hypoallergenic British Wool 200tc Organic Cotton Bed Bug Resistant - Extra 100% Natural Premium Comfort by woolroom - **How much does it cost?** $815.29 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/159703934-deluxe-mattress-topper-king-bed-4-5-cm-1000gsm-certified) ## Best For - woolroom enthusiasts ## Why This Product - Trusted woolroom brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Luxury Layer of Comfort:** Add 4-5 cm of plush softness for an instant mattress upgrade. - • **Breathe Easy, Sleep Better:** 200 thread count organic cotton cover ensures superior breathability and moisture-wicking. - • **Year-Round Temperature Control:** Wool fibers adapt to body heat, reducing night sweats and overheating by up to 70%. - • **Ethically Sourced & Sustainable:** Traceable British wool from farms adhering to strict animal welfare standards. - • **Hypoallergenic & Naturally Protective:** Certified allergy-friendly wool resists dust mites, mould, and mildew for a cleaner sleep. ## Overview The Deluxe Mattress Topper King Bed features a 4-5 cm thick layer filled with 1000gsm of fully traceable British wool, encased in a certified 200 thread count organic cotton cover. Designed for professional millennials seeking a natural, hypoallergenic, and breathable sleep upgrade, it offers superior temperature regulation, moisture management, and allergy protection. Ethically sourced and certified by Allergy UK and OEKO-TEX, this topper delivers up to 25% better sleep quality compared to synthetic alternatives, making it a smart, sustainable investment for year-round comfort and mattress longevity. ## Description Product Description Which one suits your needs most? Are you in need of temperature regulation or some added comfort? A wool mattress protector provides a thin layer between you and your mattress to preserve your mattress and regulate body heat naturally. A wool mattress topper adds an extra thick layer of padding to your bed for maximum, luxurious comfort. Which one suits your needs most? Are you in need of temperature regulation or some added comfort? A wool mattress protector provides a thin layer between you and your mattress to preserve your mattress and regulate body heat naturally. A wool mattress topper adds an extra thick layer of padding to your bed for maximum, luxurious comfort. Can I wash this mattress topper? Wool contains natural self-cleaning properties and does not require frequent washing. This is why wool is naturally resistant to mould, mildew, and dust mites. When it is time for a wash, dry clean only. Can I wash this mattress topper? Wool contains natural self-cleaning properties and does not require frequent washing. This is why wool is naturally resistant to mould, mildew, and dust mites. When it is time for a wash, dry clean only. Are wool mattress toppers better than down? Nature's miracle fibre has been valued for centuries, with its incredible properties still discovered today. Adaptable for all seasons, hypoallergenic for allergy sufferers and remarkably durable - ensures your bedding investment lasts for years. Are wool mattress toppers better than down? Nature's miracle fibre has been valued for centuries, with its incredible properties still discovered today. Adaptable for all seasons, hypoallergenic for allergy sufferers and remarkably durable - ensures your bedding investment lasts for years. Can I use this on a synthetic mattress? Yes. It's perfect for use on memory foam, latex or any other mattress that gets very hot with use. This will take away up to 70% of the heat given off leaving you to sleep comfortably without overheating. Can I use this on a synthetic mattress? Yes. It's perfect for use on memory foam, latex or any other mattress that gets very hot with use. This will take away up to 70% of the heat given off leaving you to sleep comfortably without overheating. Review: Great product - I love this topper. It’s incredibly soft and has made my bed much more comfortable, I’m sleeping much better now. Very pleased and it’s made with British wool! Review: Supportive, natural material, super comfy and great quality - I’m extremely impressed with this mattress topper. The quality is outstanding and you can immediately feel that it’s a well-made, natural product. I bought it in the UK but actually transported it to the Caribbean where I live, which is a very humid climate, and it has performed brilliantly. One of the biggest advantages is how breathable it is. Even on hot, humid nights when you would normally wake up sweaty in bed, the wool keeps the bed feeling cool and dry. It seems to regulate temperature really well and prevents that damp feeling you often get in bed in humid environments. I originally purchased this after having problems with duck down pillows that became mouldy within a week in the humidity. I have been wanting to switch my bedding to all natural materials and also needed a wider mattress protector but didn’t want to use synthetic materials. This wool topper has been the perfect solution — it’s completely natural, breathable and doesn’t trap moisture the way synthetic covers can. I was a bit dubious about the thickness, but it is more than thick enough to ensure my ageing back is protected from the crappy mattress in my rented apartment. It gives the bed a luxurious feel, is slip resistant and even though it is a high price point in comparison to synthetic toppers, well worth the money. Overall, this is an amazing quality topper: breathable, natural, comfortable and ideal even in very humid climates. If you want something that protects your mattress, avoids synthetic materials and helps keep your bed cool and dry, this is a fantastic option. ## Features - INSTANT MATTRESS COMFORT UPGRADE - Add an indulgent extra layer of comfort to your mattress with fully traceable soft British wool, encased in certified 200 thread count organic cotton. Naturally breathable and moisture-wicking to help regulate temperature for a cooler, more comfortable night’s sleep. - 100% TRACEABLE & CERTIFIED BRITISH WOOL - Lovingly handcrafted and filled with 1000gsm of fully traceable British wool. Certified by Allergy UK and OEKO-TEX Standard 100, this naturally hypoallergenic topper is ideal for those seeking a cleaner, healthier sleep environment. With no synthetic fibres added, wool is naturally antibacterial and resistant to dust mites, mould and mildew. - TEMPERATURE REGULATING & BREATHABLE SLEEP - British wool fibres naturally respond to changes in body temperature, helping reduce overheating and night sweats while maintaining balanced warmth throughout the night - perfect for year-round comfort. Woolroom toppers will deliver 25% better sleep than polyester, down and feather through superior moisture management and heat regulation. - THE HOME OF NATURAL SLEEP - With over 150 years of expertise in sourcing the right breed for the right need, Woolroom thoughtfully crafts premium sleep solutions designed to support happier, healthier living, naturally. From sheep to sleep, our British wool bedding has shown to improve sleep quality by up to 25% compared to other bedding fibre types. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07FPHG2QZ | | Age Range Description | Adult | | Best Sellers Rank | 38,461 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 97 in Mattress Toppers | | Brand | WOOLROOM | | Brand Name | WOOLROOM | | Closure Type | Elastic Straps | | Closure type | Elastic Straps | | Colour | Uk King 150x200cm | | Customer Reviews | 4.7 out of 5 stars 187 Reviews | | Fabric Type | Traceable 100% British Wool, 200 Thread Soft Organic Cotton, Filling Weight: 1000gsm | | Global Trade Identification Number | 05060560140726 | | Included Components | Mattress Topper | | Item Type Name | Wool Mattress Topper | | Manufacturer | WOOLROOM | | Manufacturer Warranty Description | Risk Free 30-Night Sleep Trial | | Material Type | 100% Traceable British Wool Filling Encased in Organic Cotton Cover (200 Thread) | | Number of Items | 1 | | Other Special Features of the Product | Manufactured using 100% natural materials and fibres, for the most natural sleep., We recommend our mattress toppers to anyone looking to add a layer of luxury to their existing mattress but if you're struggling with heat regulation on a soft or memory foam mattress we recommend our mattress protectors for the best heat regulation. All Woolroom toppers are suitable for those with allergies and are… | | Product Care Instructions | Dry Clean Only, Dry clean only using a non-toxic service for best results. | | Size | King Size Bed | | Special feature | Manufactured using 100% natural materials and fibres, for the most natural sleep., We recommend our mattress toppers to anyone looking to add a layer of luxury to their existing mattress but if you're struggling with heat regulation on a soft or memory foam mattress we recommend our mattress protectors for the best heat regulation. All Woolroom toppers are suitable for those with allergies and are the only wool toppers to hold the Allergy UK Seal of Approval., Wool ethically sourced from strictly audited British farms who adhere to the 5 Freedoms in the Animal welfare act of 2006, Woolroom holds OEKO-TEX® Standard 100, Class 1. Simply put, it is the highest standard a brand can achieve and should give you confidence that each and every product., Woolroom toppers will deliver 25% better sleep than polyester, down and feather through superior moisture management and heat regulation. Special feature Manufactured using 100% natural materials and fibres, for the most natural sleep., We recommend our mattress toppers to anyone looking to add a layer of luxury to their existing mattress but if you're struggling with heat regulation on a soft or memory foam mattress we recommend our mattress protectors for the best heat regulation. All Woolroom toppers are suitable for those with allergies and are the only wool toppers to hold the Allergy UK Seal of Approval., Wool ethically sourced from strictly audited British farms who adhere to the 5 Freedoms in the Animal welfare act of 2006, Woolroom holds OEKO-TEX® Standard 100, Class 1. Simply put, it is the highest standard a brand can achieve and should give you confidence that each and every product., Woolroom toppers will deliver 25% better sleep than polyester, down and feather through superior moisture management and heat regulation. See more | | Thread Count | 200 | | Unit Count | 1.0 count | | Water Resistance Level | Water Repellent | ## Product Details - **Brand:** WOOLROOM - **Colour:** Champagne - **Size:** King - **Fabric Type:** Traceable 100% British Wool, 200 Thread Soft Organic Cotton, Filling Weight: 1000gsm - **Special feature:** 100% British Wool traceable back to UK farms through our Wool ID® programme, Certified by OEKO-TEX & Allergy UK, Scientifically proven natural better sleep (25% more restful sleep vs. polyester/feather and down), Wool ethically sourced from strictly audited British farms who adhere to the 5 Freedoms in the Animal welfare act of 2012 ## Images ![Deluxe Mattress Topper King Bed 4-5 cm - 1000gsm Certified Hypoallergenic British Wool 200tc Organic Cotton Bed Bug Resistant - Extra 100% Natural Premium Comfort - Image 1](https://m.media-amazon.com/images/I/81qeuGTtagL.jpg) ![Deluxe Mattress Topper King Bed 4-5 cm - 1000gsm Certified Hypoallergenic British Wool 200tc Organic Cotton Bed Bug Resistant - Extra 100% Natural Premium Comfort - Image 2](https://m.media-amazon.com/images/I/81r7O5bITML.jpg) ![Deluxe Mattress Topper King Bed 4-5 cm - 1000gsm Certified Hypoallergenic British Wool 200tc Organic Cotton Bed Bug Resistant - Extra 100% Natural Premium Comfort - Image 3](https://m.media-amazon.com/images/I/8123XYbkRxL.jpg) ![Deluxe Mattress Topper King Bed 4-5 cm - 1000gsm Certified Hypoallergenic British Wool 200tc Organic Cotton Bed Bug Resistant - Extra 100% Natural Premium Comfort - Image 4](https://m.media-amazon.com/images/I/71JC+PFcJWL.jpg) ![Deluxe Mattress Topper King Bed 4-5 cm - 1000gsm Certified Hypoallergenic British Wool 200tc Organic Cotton Bed Bug Resistant - Extra 100% Natural Premium Comfort - Image 5](https://m.media-amazon.com/images/I/71v9wvTY+YL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Which one suits your needs most? Are you in need of temperature regulation or some added comfort?** A: A wool mattress protector provides a thin layer between you and your mattress to preserve your mattress and regulate body heat naturally. A wool mattress topper adds an extra thick layer of padding to your bed for maximum, luxurious comfort. **Q: Can I wash this mattress topper?** A: Wool contains natural self-cleaning properties and does not require frequent washing. This is why wool is naturally resistant to mould, mildew, and dust mites. When it is time for a wash, dry clean only. **Q: Are wool mattress toppers better than down?** A: Nature's miracle fibre has been valued for centuries, with its incredible properties still discovered today. Adaptable for all seasons, hypoallergenic for allergy sufferers and remarkably durable - ensures your bedding investment lasts for years. **Q: Can I use this on a synthetic mattress?** A: Yes. It's perfect for use on memory foam, latex or any other mattress that gets very hot with use. This will take away up to 70% of the heat given off leaving you to sleep comfortably without overheating. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product *by H***N on 26 December 2025* I love this topper. It’s incredibly soft and has made my bed much more comfortable, I’m sleeping much better now. Very pleased and it’s made with British wool! ### ⭐⭐⭐⭐⭐ Supportive, natural material, super comfy and great quality *by S***C on 13 March 2026* I’m extremely impressed with this mattress topper. The quality is outstanding and you can immediately feel that it’s a well-made, natural product. I bought it in the UK but actually transported it to the Caribbean where I live, which is a very humid climate, and it has performed brilliantly. One of the biggest advantages is how breathable it is. Even on hot, humid nights when you would normally wake up sweaty in bed, the wool keeps the bed feeling cool and dry. It seems to regulate temperature really well and prevents that damp feeling you often get in bed in humid environments. I originally purchased this after having problems with duck down pillows that became mouldy within a week in the humidity. I have been wanting to switch my bedding to all natural materials and also needed a wider mattress protector but didn’t want to use synthetic materials. This wool topper has been the perfect solution — it’s completely natural, breathable and doesn’t trap moisture the way synthetic covers can. I was a bit dubious about the thickness, but it is more than thick enough to ensure my ageing back is protected from the crappy mattress in my rented apartment. It gives the bed a luxurious feel, is slip resistant and even though it is a high price point in comparison to synthetic toppers, well worth the money. Overall, this is an amazing quality topper: breathable, natural, comfortable and ideal even in very humid climates. If you want something that protects your mattress, avoids synthetic materials and helps keep your bed cool and dry, this is a fantastic option. ### ⭐⭐⭐⭐⭐ Ridiculously squishy *by L***E on 5 January 2024* I bought this wool filled, super soft, cloud like mattress topper and it was delivered about four hours ago. I immediately put it on my bed. Ate dinner, did the whole domestic goddess stuff and have actually gone to bed four hours earlier than I would normally do BECAUSE of this topper. I cannot recommend it enough. If you have a cheap, budget mattress and cannot justify spending stupid amounts of money on a ‘hotel’ like mattress, which is the equivalent price of a second hand car, don’t. Buy this mattress topper instead. We spend a third of our lives in bed and investing under £200 on providing a good nights sleep is a solid investment. It’s a sustainable, ethically sourced product. From Chatsworth! My favourite stately home. So now, not only am I outrageously comfortable, toasty warm and contented, but I now also feel rather fancy and just a tiny bit Lady of the House. Spend the money. It is worth absolutely every last well earned penny. ## Frequently Bought Together - Woolroom Deluxe Wool Mattress Topper King Bed - Exclusive Allergy-UK Approved British Wool Bed Topper - Superior Moisture Management - Extra 100% Natural Luxurious Chatsworth Estate Soft Comfort - Woolroom Deluxe King Mattress Protector - Machine Washable Bed Cover - 100% Naturally Hypoallergenic Temperature Regulating British Wool Mattress Protector King Size 200thd Organic Cotton Quilted - WOOLROOM Deluxe Washable Standard Size Customisable Wool Pillow - Traceable 100% British Wool for Better Natural Sleep - Allergy-Friendly Thermoregulating Head Comfort - Feather and Down Alternative --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/159703934-deluxe-mattress-topper-king-bed-4-5-cm-1000gsm-certified](https://www.desertcart.us/products/159703934-deluxe-mattress-topper-king-bed-4-5-cm-1000gsm-certified) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-05*