Looking to get a more restorative night's sleep? The Emma® Diamond Spring Free Mattress is specifically designed to offer enhanced deep sleep, increasing the length of your most restful sleep stages. Emma's sleep experts and engineers have created technology that helps you to sleep quicker, longer and deeper than before - and all you have to do is lay down.

Extend your deep sleep phases by up to 12%

Using natural heat conductor, graphite, Emma have created their bespoke Diamond Degree® technology. By infusing special foam layers with graphite particles and a graphite coating, your body heat is dissipated, which aids the body's natural process of cooling down to enter a deep sleep. This technology, incredibly, helps to shorten light sleep phases and extend deep sleep phases, helping you reach the latter in record time.

Once you've reached the optimal sleeping temperature, the Emma® Diamond Spring Free Mattress has you in the ideal sleeping conditions. With your body physically relaxed and comfortable, your brain is able to support a deeper, more rejuvinating sleep - the only problem you'll face will be wanting to get up in the morning.

Targeted orthopaedic support with a firm feel

These layers of graphite infused foam not only keep you cool, but also contour to the unique shape of your body. Optimum body support and dynamic adaptation mean you'll recieve firm, orthopaedic support no matter how you turn and move in the night. Your spine will be kept properly aligned, while your posture is maintained and joint pains are eased.

An open-pore sandwich core ensures maximum breathability for the most refreshing night's sleep possible. A zoned HRX™ foam foundation ensures targeted support to your heaviest pressure points - your hips and shoulders - to keep your back in the correct sleeping position.

To further enhance the cooling effect of this mattress, the Emma® Diamond Spring Free is finished with a SensICE® cool-touch cover, which is completely removable and washable up to 40°C.

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• Innovative Diamond Degree® technology helps to cool your core body temperature by up to 1.5°C, which gets you to deep sleep faster
• Graphite infused foam with a graphite coating dissipate body heat, keeping you at an optimal sleeping temperature
• Specialised memory foam contours to your unique body shape, offering dynamic support and intense pressure relief
• Breathability is maximised, further enhancing the refreshing, cooling effect of the mattress
• Cooling effect aids your brain's production of melatonin, the sleep hormone
• Enhanced spinal alignment and posture control, with zoned HRX™ foam targeting support to your heaviest pressure points
• SenseICE® cool-touch cover is completely removable and machine washable, keeping your mattress clean and hygienic

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.

Emma 10 Year Guarantee

Emma are so confident of the quality workmanship that goes into all of their mattresses that they offer a 10 Year Guarantee, covering your mattress in the unlikely event of defects occurring despite proper use and handling. Please see below for further details:

Download warranty/guarantee information