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Comfort trial

Comfort fillings
Firmness rating

Support system
Enjoy blissful comfort, the natural way. Featuring the finest blend of 4000 pocket springs zoned in 7 areas, premium Hampshire wool and English cotton, this is a truly luxurious mattress.

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

Small, individually cased springs provide added comfort to the mattress whilst offering soothing pressure relief. Mini springs decrease motion transfer so you can share the bed undisturbed.

Stay snuggly all night long. Perfect all year round, wool is a natural insulator and has great temperature regulating properties.

Natural cotton fibres create a perfectly fresh sleeping environment. The soft fillings regulate your body temperature and wicks away moisture.

Durable edge-to-edge support provides a maximised sleeping surface for a more secure sleep. Sit and lay comfortably right to the very edge with zero 'roll-off' sensation.
Firmer than a medium mattress for extra support

About 11 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.

Enhances air circulation through the mattresses for a fresher feel. Prevents moisture build-up, creating a more hygienic environment.

A traditional and elegant design that holds fillings in place whilst enhancing the stability of the mattress. The luxurious tufting ensures zero shifting, shape loss or sagging.

Prolong the incredible feeling of your mattress by flipping it over regularly. To enhance the performance and longevity of your mattress, flip over every few months.

Stitched into the mattress border, turning handles are there for easier moving and turning. When caring for your mattress, simply use the handles provided for ease of use.

For your peace of mind

Expertly handcrafted in the UK. This product helps to support our economy and helps to reduce environmental impact.

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

For the highest standards of quality and safety
Experience sleep like never before with the Millbrook Wool Luxury 4000 Pocket Mattress.
Top-rated!
Here at Mattress Online, we've given this mattress our own stamp of approval as it's one of our Top Picks for 2025! We're confident you'll love this mattress and everything it has to offer, so why not treat yourself today.
Luxury Hampshire wool
Millbrook have carefully selected Hampshire fleece wool for this stunning mattress. A unique, single black Hampshire wool tuft signifies the inclusion of this premium wool inside.
Locally sourced from Hampshire lambs, this wool is thicker, fuller and more resilient than standard wool - for a more comfortable night's sleep, the natural way.
Naturally breathable, wool is the ideal comfort material to keep you warm in winter and cool in summer. Blended with layers of English cotton, the Wool Luxury 4000 is truly luxurious.
Traditionally hand-tufted, this mattress locks in all the plush comfort and provides enhanced support.
Pocket sprung support
Good postural support is essential for a healthy night's sleep. The Wool Luxury 4000 features a remarkable 4000 pocket spring system with a ErgoZone 7 design. The zoned design offers firmer support around your hips, head and feet. This firmer feel is achieved through thicker gauge wires with stronger tension. The design stops these areas of your body from sinking in and resulting in an uncomfortable sleep posture. The softer zones offer lighter support and optimise the sumptuous feeling without compromise. Designed to respond to your pressure points to deliver ultimate comfort and promote natural spinal alignment.
Since each pocket spring is individually encased, they actively work throughout the night to support your body with highly responsive and targeted support. Pocket springs are considered a superior spring system - and for good reason! There's no roll-together or roll-off, and you won't feel your partner's movements as you sleep. It's the perfect recipe for a peaceful night's sleep.
Optimised sleep space
Maximised sleeping space is a must for a good night's sleep - whether you sleep with your partner or you get the bed to yourself!
Complete with metal rods that sit above and below the pocket spring unit and are held in place with butterfly clips. This design reinforced the durability and stability of the mattress edge to stop it from sinking when met with weight or pressure. So you can enjoy edge-to-edge support without a 'roll off' feel.
Stylish design
The Wool Luxury 4000 is finished with a beautifully soft-touch cotton-viscose fabric cover. It'll become a stunning feature in your bedroom and it truly looks as good as it feels.
Easy care for your convenience
Complete with built-in turning handles, it's easy to move your new mattress. As it's double-sided, we recommend that you flip your mattress regularly to keep it in great condition.
Quality you can trust
Handmade by expert craftspeople in the UK, this mattress has been produced to the highest standards. The cover is infused with M-Pure, a 100% natural, plant-based treatment that's naturally fire resistant.
Sleep soundly: it's approved by the National Bed Federation, too!
10 Year Warranty
This Millbrook mattress comes with a 10 Year Warranty. In order to benefit from this warranty, please ensure that you register your new product within 60 days of your purchase date.
Weights: Single: 40kg, Small Double: 60kg, Double: 65kg, King Size: 70kg, European King Size: 75kg, Superking: 80kg, Superking Zip and Link: 80kg
This mattress comes with a 60-Night Comfort Trial - like all of our mattresses!
The trial lets you test your mattress for up to 60 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 to firm |
| Comfort fillings | Mini Pocket Springs, Wool, Cotton, Tufted |
| Support system | Pocket Springs |
| Pocket spring count | 4000 |
| Edge support | Yes |
| Border | Air vents |
| Turning handles | Yes |
| Double-sided | Yes |
| Warranty | 10 years |
| Awards & accreditations | Handcrafted in the UK, Approved by the National Bed Federation |
| Fire resistance | Conforms to BS7177: 2008, for use at home |
| Downloads | Millbrook Product Guarantee |
| Size | Width | Length | Depth |
|---|---|---|---|
| Single | 90cm | 190cm | 28cm |
| Small Double | 120cm | 190cm | 28cm |
| Double | 135cm | 190cm | 28cm |
| King Size | 150cm | 200cm | 28cm |
| European King Size | 160cm | 200cm | 28cm |
| Superking | 180cm | 200cm | 28cm |
| Superking Zip and Link | 180cm | 200cm | 28cm |
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 room of your choice | 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 |
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.
A balanced snapshot of what customers love (and what they don't), generated by AI.
Beautiful mattress. Buying a second one
Verified Purchase
Very comfortable. Sleeping so much better
Verified Purchase
Very comfortable mattress that gives a lot of much needed support to my back. Very pleased with this purchase
Verified Purchase
Since having my new mattress I no longer have back and neck pain and better night sleeps
Verified Purchase
Excellent mattress my wife and myself have found such a big difference better nights sleep altogether, definitely use mattress online again and recommend. Kind regards. Mr Mrs Edwards .
Verified Purchase
Good service
Verified Purchase
I was more than happy with this matress. Very well made and extremely comfortable.
Verified Purchase
Extremely comfortable vey pleased with my purchase
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Lovely mattress, delivered early, friendly drivers.
Verified Purchase
good quality
Verified Purchase
1
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customerservice@mattressonline.co.uk