Coolflex Harmony 3000 Mattress |

MattressNextDay cant use this browser

Upgrade now, for a better browsing experience and
to keep your data safe.
Try Downloading one of these
Ends in -
Coolflex Harmony 3000 Mattress
Coolflex Harmony 3000 Mattress
Coolflex Harmony 3000 Mattress
Coolflex Harmony 3000 Mattress
Coolflex Harmony 3000 Mattress
Coolflex Harmony 3000 Mattress thumbnail
Coolflex Harmony 3000 Mattress thumbnail
Coolflex Harmony 3000 Mattress thumbnail
Coolflex Harmony 3000 Mattress thumbnail
Coolflex Harmony 3000 Mattress thumbnail
Jan Sale Image

Hurry, deal ends in

0 d
0 h
0 m
0 s

Coolflex Harmony 3000 Mattress

5 star rating
(1) Reviews
A logo for the Coolflex brand


List Price £XXX.XX
20cm Depth Reflex Foam Pocket Springs Removable & Washable

Select Size Size Guide

Jan Sale Image

Hurry, deal ends in

0 d
0 h
0 m
0 s


This mattress takes comfort to the next level by including a massive 3000 pocket springs to cradle your body as you rest. This system of springs is ideal for giving tailored support to your body and distributing your weight equally when you lie on it. The more springs you have, the more comfort you get which is why having 3000 to enjoy is so amazing. This is rated as a medium mattress for firmness which means it is not too hard but not too soft either.

Taking this mattress to where it is needed in your home is simple thanks to the vacuum sealing it undergoes before delivery. This means there are no more pulled muscles or awkward positions for trying to lug an unsealed mattress upstairs. Once you have it in situ, simply unpack and leave for a few hours before using. Coolflex have included a decadent level of 50mm foam which is made from high-density material. This not only gives great longevity to the foam itself but also helps it to keep your spine in perfect alignment when you sleep. If you have backache, you will really feel a positive difference after sleeping on this product for a while!

Caring for this mattress is very easy as it is a no turn product. This means no heavy lifting is needed to keep it in great shape. You just simply rotate it now and again to help keep it feeling good. There is also a removable cover included which can be dry cleaned when grubby for a healthier night's rest. This cover is also treated with unique Fresche tech which helps stop odours, germs and bacteria from forming on it.

In addition, this is a hypoallergenic mattress which is perfect for giving allergy sufferers a better evening's rest. Dust mites simply cannot stay alive on this mattress which means you get a relaxing night's sleep every time. For added comfort levels when you rest, Coolflex have included excellent air flow in this mattress which stops moisture from accumulating inside. Suitable for either divan or traditional bed frames, the 5-year guarantee for the mattress core gives you total peace of mind when buying.


Pocket Springs

Pocket springs are springs mounted in their own seperate fabric pockets, meaning they work completely independently of one another and can provide your body with better pressure relieving support.

Reflex Foam

Used together with springs, or as the support layer in all-foam mattresses, Relfex Foam is versatile and comfortably supportive.

20cm Deep

This mattress is approximately 20cm deep.

Medium Support

Good all-rounder for front, side or back sleepers.

Removable & Washable Cover

To aid with hygiene, this product has a zipped cover that can be removed for washing.

No Need To Turn

A single-sided mattress which does not need to be turned/flipped. One-sided mattresses should, however, be rotated head to toe regularly.

Vacuum Packed & Rolled

Rolled mattresses have the advantage of being easy to transport, especially to upstairs bedrooms. When unrolled, they expand fully and are usually ready to sleep on within 48 hours.

No Roll Together

Individual personal sleeping zones mean that you won't be disturbed if your partner rolls or moves, as you won't feel their motion. There's also no tendency to roll towards the middle of the mattress.

Pressure Relieving

This type of mattress gives maximum pressure relief, allowing your body weight to spread across it evenly. This ultimately means less tossing and turning throughout the night and a more relaxing and restful sleep.


Being hypoallergenic, this is the perfect item for allergy sufferers - or anyone looking for a healthy night's sleep.

Made in the UK

This item has been manufactured in the UK.

Fire Resistant - Low Hazard

This product conforms to the BS7177: 2008 standard for domestic use (low hazard) - ideal for use at home.

Warranty & Guarantee

5 Year Guarantee

This product comes with a 5 year manufacturer's guarantee.


Most of our mattresses are available for free next day delivery. Order before 5pm, and we will dispatch your mattress or bed the same day, for free next day delivery. You can also select another day of your choice in your basket. Don't forget to check out our range of additional services like room of choice delivery & mattress recycling - where we take your old unwanted mattress away.

About Coolflex

Using innovative technologies, our Coolflex mattresses have been designed with you in mind, offering a cosy, comfortable place to sleep all night, every night. At MattressNextDay, we stock an impressive selection of Coolflex products.

Our Coolflex mattress range includes designs with a variety of different features, so regardless of your individual requirements, you’ll be able to find the right match for you. For example, for those who suffer with allergies and asthma, we offer models with hypoallergenic and antibacterial properties, while our orthopedic designs are ideal if you struggle with a physical ailment, such as back, neck or shoulder pain. We also stock mattresses that have been designed with spinal support and pressure relief qualities to improve blood circulation while you snooze.

To make sure your chosen design is right for you, you can pick your preferred firmness rating and construction type, such as memory foam, reflex foam and pocket sprung.

Looking for a mattress with specific dimensions? Our Coolflex mattresses are available in a number of different sizes. We have models in small single, single, small double, double, kingsize and superking, so you shouldn’t struggle to find a mattress to fit any bedroom in your home.

In a hurry to get your mattress? If you spend over £150 and place your order before 5pm, you will qualify for free next day delivery.

If you need more information about our Coolflex range, get in touch. Our bed experts are available to answer your questions. Give us a call or fill out our online contact form.


Reviews are no joke! We value authentic reviews and only display genuine & verified reviews to our customers

User rating

1 Reviews

Verified by Trustpilot
user icon
M Knox
User rating

Too early to give proper review as have only had this mattress for a couple of nights, but so far is comfy and warm. Time will tell

Show More

Added to Basket

Continue Shopping

Delivery Upgrades

Old Mattress Removal

We'll take away your old mattress when we deliver your new one, and then recycle it.

Room of Choice Delivery

We'll take your item to your preferred room of choice within the property.

Customers also purchased

Image for Silentnight Warm & Cosy Pillow Twin Pack

Silentnight Warm & Cosy Pillow Twin Pack

Image for Willow Luxury 100% Cotton Mattress Protector

Willow Luxury 100% Cotton Mattress Protector

Image for Silentnight Warm & Cosy 13.5 Tog Duvet

Silentnight Warm & Cosy 13.5 Tog Duvet