Upgrade your sleep comfort instantly with Our Extra Thick King Size Mattress Topper, designed to transform your mattress into a plush, cloud-like sleep surface. Filled with ultra-soft 1100 GSM microfiber, this 4-inch (11cm) deep mattress topper adds luxurious cushioning and support — ideal for softening firm or aging mattresses and enhancing overall sleep quality.
Key Features & Benefits
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Perfect King Size Fit – 150 x 200 cm (59 x 79 inch)
Specifically tailored to UK king size mattresses for a neat, smooth finish that complements any bed. -
Extra Thick 4-Inch (11cm) Depth
Generously filled with premium 1100 GSM microfiber to deliver exceptional softness, pressure relief, and deep comfort throughout the night. -
Hypoallergenic & Allergy Friendly
Crafted from skin-friendly, hypoallergenic materials that help reduce exposure to dust mites, allergens, and bacteria — perfect for sensitive sleepers and allergy sufferers. -
Elastic Corner Straps for Secure, Non-Slip Fit
Durable elastic straps keep the topper firmly in place on your mattress, preventing slipping or bunching during sleep. -
Breathable, Lightweight & Noise-Free
Microfiber fill ensures excellent airflow, maintaining a comfortable temperature and eliminating crinkling or noise common with other toppers. -
Easy to Clean & Maintain
Machine washable on a gentle cycle; tumble dry on low or air dry. Avoid bleach for lasting softness and durability.
Versatile Uses
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Mattress softener for firmer beds
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Plush cushioning for guest rooms or holiday homes
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Travel mattress topper for portable comfort
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Refresh and extend mattress lifespan without replacement
Care & Delivery Tips
The mattress topper arrives vacuum-sealed for compact packaging and hygiene. Please shake well before use to restore its full thickness and fluffiness. Regular fluffing after use will help maintain its plush loft and comfort.
Available UK Sizes
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Single: 90 x 190 cm (35 x 75 inch)
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Small Double (4ft): 122 x 190 cm (48 x 75 inch)
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Double: 137 x 190 cm (54 x 75 inch)
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King: 150 x 200 cm (59 x 79 inch)
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Super King: 183 x 201 cm (72 x 79 inch)
Product Specifications
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Thickness: 4 inch / 11 cm extra deep fill
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Filling: 1100 GSM premium microfiber
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Cover Material: Soft microfiber fabric
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Colour: White
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Features: Hypoallergenic, breathable, noiseless, lightweight, non-slip fit
Frequently Asked Questions (FAQs)
Q: How thick is this mattress topper?
A: The mattress topper is 4 inches (11 cm) thick, providing a deep, plush cushioning layer.
Q: Will this topper fit my king size mattress?
A: Yes, it is designed to fit UK king size mattresses measuring 150 x 200 cm (59 x 79 inches) with elastic corner straps for a secure fit.
Q: Is this mattress topper suitable for allergy sufferers?
A: Yes, our topper uses hypoallergenic materials that resist dust mites and allergens, perfect for sensitive skin.
Q: Does it make noise when moving?
A: No, the microfiber fill is breathable and noiseless, ensuring a quiet and comfortable sleep experience.
Q: How do I clean and maintain this mattress topper?
A: Machine wash on a gentle cycle, tumble dry low or air dry. Avoid bleach to preserve softness. Shake regularly to maintain loft.
Q: Will this mattress topper help soften a firm mattress?
A: Absolutely. The extra thick 1100 GSM microfiber filling adds a soft, cushiony layer, improving comfort on firmer mattresses.
Upgrade your mattress with Our 4-inch / 11cm Extra Thick King Size Mattress Topper for a luxurious, allergy-friendly sleep experience. Order now to enjoy enhanced softness, support, and lasting comfort.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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