up to
35% off
Free delivery
Experience the bliss of comforting thermoregulating technology and advanced zoned support with the Emma Diamond Hybrid Deluxe Mattress.

Individualised springs encased in cloth pockets. Expertly adapting to movement to distribute personalised support to each part of your body.

Supportive foam that promotes spinal alignment and a personalised sleeping experience by moulding to your body. It is durable and resilient and it holds its shape for an extended period of time.

Special design made to create your own personal sleep zone. No distractions or disturbances when your partner moves. So you can enjoy an undisturbed rest.
Not too soft, not too firm - the perfect balance

Enjoy the feeling of a crisp, fresh mattress with a washable cover. It renews the freshness of your bed with ease for a hygienic and healthy rest.

A sumptuously soft finish that provides additional cosiness and warmth. Knitted covers enhance airflow and are incredibly breathable. So, you can enjoy a cooler snooze.

A rolled-up mattress is efficiently packaged for easy manoeuvring. Because of its smaller, compact design, less delivery vans are needed, providing a great environmentally-friendly option.

With a single-sided mattress, there's no need to flip. Simply rotate every few months to care for your mattress. Fuss free mattress maintenance!

About 11.4 inches deep. Depth is an important factor when buying a mattress as it can affect the suitability for particular bedding, mattress toppers and bed frames.

For your peace of mind

This product conforms to BS7177: 2008, for use at home

For the highest standards of quality and safety
Sink into pressure relieving comfort and enjoy the refreshing feel of the Emma Diamond Hybrid Deluxe Mattress with thermoregulating technology.
Zoned pocket springs
The core of this mattress is made with 800 3-zone dynamic pocket springs. Encased in individual fabric pockets, each spring responds independently to your weight and movement. This ensures full body support whilst limiting motion transfer.
The spring system is zoned in three areas across the mattress to provide firmer support to areas like your hips, back and shoulders. This encourages better spinal alignment, healthier sleep posture and ease aches.
Innovative foam layers
Designed with layers of smart foam, this Emma mattress is built to deliver lasting comfort. A 3cm layer of Diamond Degree® Energex foam is infused with graphite and diamond particles. This infusion is paired with a breathable open cell structure to increase airflow through the mattress.
The design of this foam helps to conduct heat away from your body to keep you at a comfortable temperature as you sleep. This is enhanced with the Sense ICE cool-to-touch knitted cover to limit overheating.
Completing the comfort of the mattress is a 6cm layer of zoned Reflex foam and an additional 8cm layer of Reflex foam. These layers are highly durable and comforting to keep you feeling secure and cosy night after night. The zoned layer of Reflex foam features unique 3-zone comfort areas so you can receive the right amount of comfort and pressure relief.
Edge to edge support
The mattress is designed with a foam encapsulated edge. The dense foam creates a sturdier, more durable mattress border. So you can sleep right to the edge without a ‘roll off’ feel, helping you enjoy a maximised sleep space.
Designed for convenience
Featuring a knitted cover that is removable and washable. Making it hassle free to keep your mattress clean and cosy.
This mattress is delivered vacuum packed and rolled for ultimate convenience. This means it is easy to carry to your room of choice and unpack without navigating tight staircases or corners.
Complete with a generous 10 Year Guarantee for absolute reassurance so you can purchase with confidence.
This mattress comes with a 100-Night Comfort Trial!
The trial lets you test your mattress for up to 100 nights. If it's not quite right for you, you can exchange it for a new one.
It can take some time to get used to a new mattress, which is why we ask you to sleep on your mattress for 30 nights. If you're not happy with the feel after 30 nights, simply contact our Customer Service Team, and we'll arrange a mattress exchange.
| Firmness | Medium |
| Support system | Pocket Springs, Reflex Foam |
| Pocket spring count | 800 |
| Cover | Knitted cover |
| No roll-together | Yes |
| Rolled-up | Yes |
| Single-sided | Yes |
| Product care | Washable cover |
| Guarantee | 10 years |
| Awards & accreditations | Approved by the National Bed Federation |
| Fire resistance | Conforms to BS7177: 2008, for use at home |
| Size | Width | Length | Depth |
|---|---|---|---|
| Single | 90cm | 190cm | 29cm |
| Double | 135cm | 190cm | 29cm |
| King Size | 150cm | 200cm | 29cm |
| Superking | 180cm | 200cm | 29cm |
Please allow for a tolerance of +/- 2cm
The following delivery methods apply to mainland England and most of Scotland, Wales and Northern Ireland. Please read our delivery page for more information.
Next day delivery (weekdays only) Order before | FREE |
Weekday of your choice Order up to 60 days ahead | FREE |
Weekend On Saturday or Sunday of your choice | FREE |
Delivery to the front door of your building | Yes |
Two-hour delivery time slot We’ll let you know on the day before your delivery | Yes |
Call to let you know we’re on our way On your delivery day | Yes |
Delivery to your room of choice | £20.00 |
Mattress recycling We'll take away your old mattress | £35.00 |
Delivery is on an all-day service, 7am - 8pm for mainland England and most of Scotland, Wales and Northern Ireland.
Need further information? Please visit our Delivery page.
Mon-Sat: 9:30am - 5:30pm
Sunday: 10am - 4pm
Mon-Sat: 09:30am - 17:30pm
Sunday: Closed
customerservice@mattressonline.co.uk