Northumberland mattress on optional divans
Northumberland mattress on optional divans
The fibre layers of a Silverstone mattress
The fibre layers of a Silverstone mattress
Northumberland mattresses with Ergomotion 330 adjustable bases. Siberian Forest Cat not included.
Northumberland mattresses with Ergomotion 330 adjustable bases. Siberian Forest Cat not included.
Harrison Spinks Mattresses are Grown in Yorkshire.
Harrison Spinks Mattresses are Grown in Yorkshire.
The Northumberland mattress
The Northumberland mattress
Luxury Enhancer mattress topper shown here w/ a Northumberland mattress
Luxury Enhancer mattress topper shown here w/ a Northumberland mattress
Northumberland 15000 Mattress
The many layers of the Northumberland mattress
The many layers of the Northumberland mattress
Northumberland 15000 Mattress
Northumberland 15000 Mattress

Northumberland 15000 Mattress

$8,572.00 CAD

The Harrison Spinks Northumberland 15000 Mattress Includes Free In-Home Delivery & Setup in the Calgary & Edmonton Areas.

120 Night Comfort Trial Available on Select Harrison Spinks Northumberland 15000 Mattresses.


The Harrison Spinks Northumberland 15000 Mattress is available for purchase in-store only.

Carefully crafted and perfected, this luxurious mattress features sumptuous natural and sustainable fillings working in harmony with multiple layers of superior springs. The Northumberland features 15,000 innovative springs in queen size, including 100% recyclable, sustainable glue-free, Quad-core pocket springs and contouring Micro springs offering responsive support night and night.

Northumberland features 7 total layers of individually wrapped, glue-free pocketed springs. The result is a deeply cradling, sumptuous comfort.

Harrison Spinks is a unique offering in the world's foam-free luxury mattress market. While made using traditional methods of construction, the spirit of innovation which originally birthed the pocket spring is alive and well. Harrison Spinks not only produces their own springs in-house but the machines that produce the springs were also designed in-house. In order to achieve the remarkably thin gauge steel required for the world's highest spring counts they must run the steel through their own series of dies. The end result is a more elastic and supportive mattress, Micro springs will continue to offer years of resilient support even in the context of the natural fillings compressing. The value for money is unrivalled by their luxury competition.

So too, is the case with the entirely-natural foam-free fillings. In 2009, Harrison Spinks purchased Hornington Manor, where they operate a 300-acre farm. They rear prize-winning sheep and grow their own hemp and flax. In fact, Harrison Spinks is the UK's largest hemp producer.

Harrison Spinks mattresses are circular by design. Using only the finest in natural and sustainable materials, 100% recyclable at the end of life, to ensure zero landfill waste.

Harrison Spinks is proudly recognized as one of the world's best bed manufacturers and hold numerous Queen's Awards in areas such as Innovation, Sustainability and International Trade.

Availability: In-Store (On Display in Calgary, Edmonton & Sherwood Park + Select Inventory in Our Calgary Warehouse)

Harrison Spinks Manufacturing Guild Mark Harrison Spinks Awards Two-sided flippable mattress Mattress features generous helpings of natural fibres Pure non-allergenic wool to regulate temperature and humidity

Northumberland Mattress Details

  • Fine quality fabric ticking
    • Woven in-house at Harrison Spinks
    • All-natural and free from fire retardant treatments
    • Hand-tufted to all internal fillings and pocketed springs
  • Two-sided, symmetrical construction to turn and rotate your mattress for lasting support
    • Three rows of perfected side-stitching to maintain the integrity of the mattress borders
  • All-natural foam-free fillings
    • Cotton
    • Herdwick Wool
    • British Wool
    • Mohair
    • Flax
    • Hemp
  • A deeply supportive pocket spring system
    • 7 Layers of pocket springs in total
    • HD 2700 zoned pocket springs (1 layer on each side of the mattress) provide targeted responsive support for heavier areas of our body while contouring with precision accuracy, keeping your spine in a neutral position
    • HD 2500 pocket springs (1 layer on each side of the mattress) provide higher performance, superb comfort and lumbar support
    • Posturfil pocket springs (1 layer on each side of the mattress) are exceptionally flexible, encased in breathable individual pockets and react instantly to sleepers movement for targeted support
    • 100% recyclable, sustainable, glue-free quad-core pocket springs are found at the very centre of the mattress layers and provide the foundational support of the mattress
    • All spring components are made in-house by Harrison Spinks
  • Coil Counts:
    • 15,000 in Queen Size
    • 18,300 in King Size
  • All Harrison Spinks mattresses contain zero foam or glue
  • Made in England
    • Harrison Spinks own and manage their own 300-acre farm in North Yorkshire, which produces wool, hemp and flax
    • The farm is located just 18 miles away from the factory in Leeds
    • Expertly woven in-house fabrics produced at the factory in Leeds
    • Each mattress is handmade in Leeds


  • Height of mattress from crown-to-crown: 13" | 33 cm
  • Height of mattress from top-to-bottom of side-stitched borders: 9.5" | 25 cm
  • Height of matching foundation: 8" | 20 cm
    • Height of foundation to crown: 8.5" | 21.5 cm
  • Height of legs: 4" | 10 cm
  • Total height of foundation w/ legs installed: 12" | 30 cm
    • Height to foundation crown w/ legs installed: 13.5" | 35 cm
  • Total height of the mattress and boxspring w/ legs installed: 26" | 66 cm
  • Total height of the mattress and boxspring without legs (to place on an existing bed frame): 22" | 56 cm
  • Optional Luxury Enhancer mattress topper adds 5" | 12 cm of height

Harrison Spinks 120 Night Comfort Trial

Harrison Spinks crafts the best value for money of any luxury (foam-free, handmade) mattresses in the world. Their micro spring technology makes these more substantial and comfortable than other luxury brand offerings. Harrison Spinks mattresses are made to order in a spring tension of the client’s choice (medium, firm, extra firm). We offer exchanges in a limited context on Harrison Spinks mattresses:

  • Harrison Spinks exchange privileges are available to our local customers only.
  • A mattress protector must be purchased on the original mattress invoice and must be used at all times.
  • An exchange must be initiated between 30 and 120 nights from the date of delivery.
  • Exchanges are only available on Queen, King and Zippered Split King.
  • Split firmness (ie: half medium/half firm) Queen and King mattresses are ineligible for exchange.
  • A 25% restocking fee will be levied against the prevailing Retail Price of the returned mattress.
  • If the replacement mattress is priced lower than the returned mattress, we will issue an in-store credit for the difference (less the 25% restocking fee).
  • Rips, stains or any such wear & tear invalidate this exchange privilege.

Boxspring Dimensions

Dimensions for our most popular boxspring types. Visit us in-store for custom sizes and additional selection.

Simply add the mattress height to any of the heights listed below for a total bed height. If you're placing one of these foundations on an existing bed frame, be sure to include the height from the floor to the support structure of your existing bed to determine the total bed height.

Foundation Heights (Imperial) Foundation Heights (Metric) Leg Height Total Height w/ Legs
Berkeley Standard Slat Foundation 2 ½"
8 ½"
6 cm
10 cm
18 cm
21.5 cm
Not available Not available
Berkeley Suspension Slat Foundation (our best-selling boxspring) 2 ⅜"
6 ½"
6 cm
10 cm
16.5 cm
23 cm
Not available Not available
Harrison Spinks Premium Foundation 8" 20 cm 4" | 10 cm 12" | 30 cm
t•masc Foundations 4"
10 cm
18 cm
3" 7" | 18 cm
10" | 25 cm
Beaudoin Breeze Platform Bed 13"
w/ legs installed
33 cm
w/ legs installed
14 ⅝" (height to top of upholstered side rails)
Ergomotion 330 Adjustable Bed 8" 20 cm 3"
Varies from 11 to 16"
Ergomotion 390 Adjustable Bed (our best-selling electric base) 8" 20 cm 3"
Varies from 11 to 16"

Additional Reading

Platform Bed & Boxspring Guide (opens in new tab)

Estimated Delivery, Shipping Costs & Availability

Varieties Which Are Typically In-Stock

The Northumberland 15000 Mattress is typically stocked in King and Split King. Please see the lead times below for situations when the Northumberland 15000 Mattress is sold out or for other sizes and configurations.

Lead Times for Out-of-Stock & Special Orders

Unless otherwise noted above, Harrison Spinks is made to order in Leeds, England. Please allow 12-16 weeks for delivery.

Delivery Costs & Available Services

In-home delivery and setup of your new Harrison Spinks bed is included at no extra cost in the Calgary and Edmonton areas. In addition, our professional delivery teams are able to travel to most locations in Alberta for a reasonable cost.

Removal of your existing mattress, bed frame and furniture is also available upon request.

Located elsewhere in Canada? Delivery of Harrison Spinks outside of Alberta is on a case-by-case basis. Please Send Us a Message or call us Toll-Free on 1-877-750-1212 to inquire.

General Availability Advice

The Mattress & Sleep Company is a family owned and operated business based in Alberta, Canada. We specialize in high-quality bedding, bath and mattresses from Canada, Europe and the USA. Our vast selection makes it impossible to stock everything. For this reason, our website does not offer real-time inventory availability as many of our products are made to order.

Please read the availability details above as we do make an effort to draw attention to products which are typically in stock in our Calgary, Edmonton and Sherwood Park stores and warehouses.

For time-sensitive needs, please give us a call Toll-Free on 1 (877) 750-1212 or Send us a Message and we will be delighted to help.

The Sleep Sound Guarantee®

We shop our competition on a regular basis to ensure The Mattress & Sleep Company offers competitive prices 365 days a year. However, it is impossible to guarantee we're always the lowest price out there. For this reason, we'll match or beat* any authorized retailer's advertised or privately quoted price.

If you've found what appears to be the same product for a lower price, Submit a Price Match Request. We would be delighted to work with you to earn your business.