We value your privacy

Our website uses cookies to enhance your experience, serve personalized ads and analyze our traffic. To learn more, see our Cookie Policy

100 Night Sleep Trial on ALL mattresses!
Recent Searches
    Suggestions
      Top Products

      Named after the picturesque cathedral city of Canterbury, the Harrison Spinks Canterbury 4450 Pocket Natural Mattress embodies Harrison Spinks’ reputation for creating the most luxurious mattresses in the industry.

      Tailored spring support that contours to your unique body shape 

      The Canterbury 4450 Mattress features a combination of innovative Cortec™ Pocket Springs and Micro posture springs for maximum support all night long. Made without glue like regular pocket springs, Cortec™ Pocket Springs can react faster to your body’s movements throughout the night.

      Micro posture springs work alongside these cleverly developed springs. Much smaller than ordinary pocket springs, Harrison Spinks’ own Micro springs are able to contour to the exact unique shape of your body, providing tailored support exactly where you need it.

      The most sustainable mattress fillings in the industry

      Owning and overseeing every stage in the production process, Harrison Spinks incorporate sustainably grown and harvested cotton and flax in the Canterbury 4450 Mattress. 

      The moisture wicking properties of soft cotton provide a dry and refreshing night’s sleep, while flax acts as a light, absorbable, breathable and organic filling.

      Within the Canterbury 4450 Mattress you’ll also find both Viscose and British wool. Viscose, derived from the wood pulp of eucalyptus, beech and pine trees, is versatile and lightweight, offering exceptional comfort.

      Harrison Spinks’ British wool blend comes from their 300 acre farm, home to hundreds of sheep. Soft and breathable, this wool acts as a climate control unit, keeping you cool in the summer and warm in the winter.

      Bringing weaving back to Yorkshire, the Harrison Spinks Canterbury 4450 Mattress features a woven chemfree mattress cover. Combining traditional methods with state-of-the-art weaving looms, Harrison Spinks are able to create a breathable and FR chemical free sleeping surface.

      1278048-5056314388841

      4450 Pocket Springs icon
      4450 Pocket Springs
      Pocket springs are springs mounted in their own separate fabric pockets, meaning they work completely independently of one another and can provide your body with better pressure relieving support.
      Wool icon
      Wool
      This type of filling gives a soft cushioned feel to the mattress. Wool is ideal for those who prefer their mattress to be traditional and natural.
      Ecotex® Fibres icon
      Ecotex® Fibres
      Made from 100% recyclable materials and recyclable again at end of life.
      Flax icon
      Flax
      An organic, absorbent, light fibre that enhances breathability.
      Sustainably Sourced Cotton icon
      Sustainably Sourced Cotton
      Highly breathable, natural cotton fibres provide a fresher, cooler sleep surface, as well as wick away excess moisture. Responsibly sourced, this cotton is grown and harvested by trusted suppliers.
      27cm Depth icon
      27cm Depth
      This mattress is approximately 27cm deep.
      Damask Cover icon
      Damask Cover
      A mattress cover which is made from a breathable Belgian damask fabric.
      Orthopaedic Support icon
      Orthopaedic Support
      Designed to offer a firmer sleep surface, providing targeted support for your back and joints.
      No Need To Turn icon
      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.
      No Roll Together icon
      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.
      Turning Handles icon
      Turning Handles
      Flag-stitched handles are attached to the sides of the mattress to assist in turning or rotating.
      Hypoallergenic icon
      Hypoallergenic
      Being hypoallergenic, this is the perfect item for allergy sufferers - or anyone looking for a healthy night's sleep.
      Hand Tufted icon
      Hand Tufted
      Tufts help to secure the luxury fillings in place, helping the mattress retain it's fullness and plumpness over time.
      Made in the UK icon
      Made in the UK
      This item has been manufactured in the UK.
      Fire Resistant - Low Hazard icon
      Fire Resistant - Low Hazard
      This product conforms to the BS7177: 2008 standard for domestic use (low hazard) - ideal for use at home.

      Additional features

      • Made by an NBF-Approved ManufacturerPeace of mind and reassurance - the manufacturer of this item is an approved member of the National Bed Federation.
      • Cortec™ Pocket Springs react quickly to your movements in the night
      • Cotton and flax blends provide moisture-wicking properties and enhanced ventilation for a refreshing night’s sleep
      • Viscose wool blend from the wood pulp of eucalyptus, beech and pine trees
      • Encased in a specially woven breathable and FR chemical free mattress cover
      • Turn free - simply rotate each season to keep as new
      • In-house designed Micro springs relieve pressure exactly where you need it
      • Sustainable fillings from Harrison Spinks’ 300 acre Yorkshire farm
      • Traceable British wool acts as a climate control unit, regulating your temperature
      • Ecotex fibres are 100% recyclable and offer layers of additional comfort

      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.

      • AB10-AB16, AB21-AB25, AB30-AB39, AB41-AB45, AB51-AB56
      • CA1-CA9
      • DD1-DD11
      • DG1-DG14, DG16
      • EH1-EH49, EH51-EH55, EH91, EH95, EH99
      • FK1-FK21
      • G1-G5, G9, G11-G15, G20-G23, G31-G34, G40-G46, G51-G53, G58, G60-G79, G18-G84, G90
      • IV1-IV19, IV30-IV32, IV36
      • KA1-KA30
      • KY1-KY16, KY99
      • LA1-LA7
      • ML1-ML12
      • PH1-PH26
      • TD1-TD15
      Authentic Traceable British Wool icon
      Authentic Traceable British Wool
      Being certified by British Wool's Traceability Scheme means that the wool used in this mattress can be traced back to the individual British farms from which it came. Ensuring 100% UK origin, this traceability is thanks to a detailed tracking system and strong relationships with farmers throughout the nation, providing full transparency about where your mattress's natural materials come from.
      100 Night Sleep Trial icon
      100 Night Sleep Trial
      Finding the perfect mattress shouldn't be stressful. That's why we offer a generous 100-night sleep trial. Snuggle in and test it out for at least 50 nights. If it's not your perfect match we’ll offer you an exchange for a mattress that you love even more.

      Harrison Spinks 10 Year Guarantee

      Family bed makers since 1840, Harrison Spinks are certain you’ll adore your new mattress, as are we. However, in the unlikely event you find a defect within ten years as a result of faulty materials or poor workmanship, you’ll be covered by their generous warranty. Please download guarantee/warranty information for more information.

      Download warranty/guarantee information

      Harrison Spinks Canterbury 4450 Mattress

      4450 Pocket Springs
      Sustainably Sourced Cotton
      Wool, Ecotex® Fibres & Flax
      27cm Depth
      Damask Cover
      Orthopaedic Support
      Firmness: Medium Firm
      100 Night Sleep Trial
      Award Winning Product
      £759
      RRP £1139
      Save £380
      33% off
      from £759
      storage icon
      Small Single
      2'6" x 6'3"
      Lightning Deal
      £759
      storage icon
      Single
      3' x 6'3"
      Lightning Deal
      £759
      storage icon
      Small Double
      4' x 6'3"
      Lightning Deal
      £1049
      storage icon
      Double
      4'6" x 6'3"
      Lightning Deal
      £1049
      storage icon
      King Size
      5' x 6'6"
      Lightning Deal
      £1169
      storage icon
      Super King
      6' x 6'6"
      Lightning Deal
      £1459
      storage icon
      King Size Zip & Link
      5' x 6'6"
      Lightning Deal
      £1339
      storage icon
      Super King Zip & Link
      6' x 6'6"
      Lightning Deal
      £1619
      storage icon
      Long Small Single
      75cm x 200cm
      Lightning Deal
      £849
      storage icon
      European Single
      90cm x 200cm
      Lightning Deal
      £849
      storage icon
      European Double
      140cm x 200cm
      Lightning Deal
      £1259
      storage icon
      European King Size
      160cm x 200cm
      Lightning Deal
      £1309
      This product combination is unavailable.
      Out of stock

      Simply pop your email address below, and we'll send you a quick reminder when this item is available!

      Please enter a valid email.
      Keep an eye on your inbox. We'll let you know when this item is back in stock.
      Something went wrong, please try again.

      Free Delivery in 3-4 Weeks

      Free delivery Tomorrow, 20th January

      Place your order now and we'll contact you to arrange delivery when your order is ready for despatch. You can then choose our popular next day delivery or select a day & time of your choice and get delivery when it's convenient for you.

      Your order helps us plant trees

      151,470+ Trees planted so far

      A logo for Ecologi

      Frequently paired with

      A placeholder image
      A placeholder image
      A placeholder image
      A placeholder image

      More Medium Firm Mattresses

      A placeholder image
      A placeholder image
      A placeholder image
      A placeholder image

      More with Pocket Springs

      A placeholder image
      A placeholder image
      A placeholder image
      A placeholder image

      More from Harrison Spinks

      A placeholder image
      A placeholder image
      A placeholder image
      A placeholder image

      You might also like

      A placeholder image
      A placeholder image
      A placeholder image
      A placeholder image
      A logo for Ecologi

      Your order helps us plant trees

      151,470+ Trees planted so far

      Free, fast delivery

      Award winning delivery

      Mattress recycling

      Planet-friendly disposals

      A logo for Klarna

      0% Interest finance

      Buy now, pay later with Klarna

      18+, T&Cs apply, Credit subject to status
      Harrison Spinks Canterbury 4450 Mattress

      Harrison Spinks Canterbury 4450 Mattress

      £

      View basket

      Pair it with

      Lightning Deal
      Harwoods European Size Cotton Fitted Sheet - White Harwoods European Size Cotton Fitted Sheet - White
      4.8 star rating

      4.8 (12)

      From £21

      Lightning Deal
      Purecare® Cotton Waterproof Anti-Microbial Mattress Protector Purecare® Cotton Waterproof Anti-Microbial Mattress Protector
      4.9 star rating

      4.9 (29)

      From £31

      Lightning Deal
      Sarah Jayne Soft & Comfortable Pillow - 2 Pack Sarah Jayne Soft & Comfortable Pillow - 2 Pack
      4.2 star rating

      4.2 (82)

      £12 £17 You save £5

      Lightning Deal
      DreamEasy Luxury 10.5 Tog All Seasons Duvet DreamEasy Luxury 10.5 Tog All Seasons Duvet
      4.6 star rating

      4.6 (44)

      From £17

      Lightning Deal
      Sarah Jayne Satin Stripe Cotton Pillow - 2 Pack Sarah Jayne Satin Stripe Cotton Pillow - 2 Pack
      4.7 star rating

      4.7 (43)

      £21 £30 You save £9