Looking to upgrade your bed with the most innovative sleep designs on the market? The Emma® Diamond Degree Mattress Topper will do exactly that, featuring incredible graphite-infused Diamond Degree® technology to cool your body as you sleep. Forget overheating - you'll experience the most refreshing, revitalising sleep possible with this Telegraph Best Buy Award Winning product.

Engineered to extend deep sleep phases

Emma's ingenious Diamond Degree® Graphite Foam offers a refreshing sleep like no other. Scientifically engineered to enhance your deep sleep stages by lowering your core body temperature, this foam cleverly absorbs heat and moisture, offering the optimal sleeping climate.

Personalised pressure relief

A layer of adaptable HRX Comfort Foam also contours to the unique curvature of your body, providing maximum pressure relief. Gently adapting to your movements throughout the night, this foam provides additional support and cushioning so you can get the most rejevenating sleep possible.

A cleaner sleeping environment

A breathable elastic cover enhances airflow throughout the mattress, amplifying the Diamond Degree® technology's cooling properties. This cover is also removable, so you can easily keep this mattress topper perfectly clean, which, coupled with hypoallergenic properties, ensures a fresh, hygienic sleeping environment.

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• Graphite-infused Diamond Degree® technology cools your core body temperature, extending your deep sleep phases and preventing overheating or night sweats
• HRX Comfort Foam contours to your unique body shape, providing maximum pressure relief and comfort
• A breathable, removable cover helps you keep your sleep set up as clean and hygienic as possible
• Specialist climate-regulating elastic cover is designed to enhance and maintain the cooling properties of the Diamond Degree® technology, ensuring maximum airflow

We provide our award-winning Free Next Day Delivery service to most locations, sending a proper night’s sleep out far and wide. Hassle-free and convenient, you can even choose a time and day that suits you, have us take your old mattress away for recycling, and get us to deliver to your room of choice!

In some places, a small fee will be charged to help us get you your best night’s rest as quickly as possible. Take a look at the following postcodes to see if this applies to you, and if you’re not sure, then use our helpful Postcode Checker to help you shop with confidence.

2 Year Guarantee

This product comes with a 2 year manufacturer's guarantee.