Name: Posh 800 Pocket Spring Mattress
Brand: Visco Therapy
SKU: Posh800-3ft-SI
Price: 199.0 GBP
Availability: InStock

Posh 800 Pocket Spring Mattress - The Oak Bed Store

Visco Therapy

£199.00

Tax Included. Delivery calculated at checkout.

In Stock, Ready For Delivery
Available to Order

Size —

Bed & Mattress Size Guide

UK Mattress Measurements

There are six standard UK bed mattress sizes. Mattress length and width is commonly referred to in the retail industry in Imperial units (4ft6 Double, for example) for the sake of simplifying the difference is size.

UK Manufacturers, however, produce their mattresses in Metric units (centimetres and metres) as a standard. This is why you sometimes see both units referred to, and we have included both below for easy conversion should it be required.

UK Mattress Size Guide

UK Standard Mattress Sizes

	Imperial (ft/in)		Metric (cm)
Mattress Size	Mattress Width	Mattress Length	Mattress Width	Mattress Length
Small Single Mattress	2 feet 6 inches	6 feet 3 inches	75 centimetres	190 centimetres
Single Mattress	3 feet	6 feet 3 inches	90 centimetres	190 centimetres
Small Double Mattress	4 feet	6 feet 3 inches	120 centimetres	190 centimetres
Double Mattress	4 feet 6 inches	6 feet 3 inches	135 centimetres	190 centimetres
King Size Mattress	5 feet	6 feet 6 inches	150 centimetres	200 centimetres
Super King Size Mattress	6 feet	6 feet 6 inches	180 centimetres	200 centimetres

European Size Mattresses

UK standard mattress sizes correct to nearest inch/centimetre. UK mattress sizes are different to European (eg Ikea) mattress sizes.

More Information

If you have any questions about UK mattress sizes please email our customer support team who will be happy to assist you: sales@oakworthfurniture.co.uk or call 023 9298 4885.

The ‘UK Standard Mattress Sizes’ document is copyright © 2019 Oakworth Furniture Ltd. Reproduction is prohibited without written authorisation from Oakworth Furniture Ltd, registered in the UK, company number: 06779762.

Last Updated 10-05-2019
Permanent link to this page: https://www.theoakbedstore.co.uk/pages/uk-standard-mattress-sizes

3ft Single

4ft Small Double

4ft6 Double

5ft King Size

Quantity

[{"id":57142400352639,"title":"3ft Single","option1":"3ft Single","option2":null,"option3":null,"sku":"Posh800-3ft-SI","requires_shipping":true,"taxable":true,"featured_image":{"id":82969801032063,"product_id":15597673349503,"position":1,"created_at":"2026-03-17T13:07:32+00:00","updated_at":"2026-03-17T18:58:12+00:00","alt":"Posh 800 Pocket Spring Mattress - The Oak Bed Store","width":4000,"height":2667,"src":"\/\/theoakbedstore.co.uk\/cdn\/shop\/files\/Posh_1.jpg?v=1773773892","variant_ids":[57142277996927,57142278029695,57142400352639,57142400385407]},"available":true,"name":"Posh 800 Pocket Spring Mattress - 3ft Single","public_title":"3ft Single","options":["3ft Single"],"price":19900,"weight":20000,"compare_at_price":null,"inventory_quantity":0,"inventory_management":"shopify","inventory_policy":"continue","barcode":"","featured_media":{"alt":"Posh 800 Pocket Spring Mattress - The Oak Bed Store","id":70249979216255,"position":1,"preview_image":{"aspect_ratio":1.5,"height":2667,"width":4000,"src":"\/\/theoakbedstore.co.uk\/cdn\/shop\/files\/Posh_1.jpg?v=1773773892"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":57142400385407,"title":"4ft Small Double","option1":"4ft Small Double","option2":null,"option3":null,"sku":"Posh800-4ft-SD","requires_shipping":true,"taxable":true,"featured_image":{"id":82969801032063,"product_id":15597673349503,"position":1,"created_at":"2026-03-17T13:07:32+00:00","updated_at":"2026-03-17T18:58:12+00:00","alt":"Posh 800 Pocket Spring Mattress - The Oak Bed Store","width":4000,"height":2667,"src":"\/\/theoakbedstore.co.uk\/cdn\/shop\/files\/Posh_1.jpg?v=1773773892","variant_ids":[57142277996927,57142278029695,57142400352639,57142400385407]},"available":true,"name":"Posh 800 Pocket Spring Mattress - 4ft Small Double","public_title":"4ft Small Double","options":["4ft Small Double"],"price":26700,"weight":20000,"compare_at_price":null,"inventory_quantity":0,"inventory_management":"shopify","inventory_policy":"continue","barcode":"","featured_media":{"alt":"Posh 800 Pocket Spring Mattress - The Oak Bed Store","id":70249979216255,"position":1,"preview_image":{"aspect_ratio":1.5,"height":2667,"width":4000,"src":"\/\/theoakbedstore.co.uk\/cdn\/shop\/files\/Posh_1.jpg?v=1773773892"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":57142277996927,"title":"4ft6 Double","option1":"4ft6 Double","option2":null,"option3":null,"sku":"Posh800-4ft6-DB","requires_shipping":true,"taxable":true,"featured_image":{"id":82969801032063,"product_id":15597673349503,"position":1,"created_at":"2026-03-17T13:07:32+00:00","updated_at":"2026-03-17T18:58:12+00:00","alt":"Posh 800 Pocket Spring Mattress - The Oak Bed Store","width":4000,"height":2667,"src":"\/\/theoakbedstore.co.uk\/cdn\/shop\/files\/Posh_1.jpg?v=1773773892","variant_ids":[57142277996927,57142278029695,57142400352639,57142400385407]},"available":true,"name":"Posh 800 Pocket Spring Mattress - 4ft6 Double","public_title":"4ft6 Double","options":["4ft6 Double"],"price":26700,"weight":20000,"compare_at_price":null,"inventory_quantity":0,"inventory_management":"shopify","inventory_policy":"continue","barcode":"","featured_media":{"alt":"Posh 800 Pocket Spring Mattress - The Oak Bed Store","id":70249979216255,"position":1,"preview_image":{"aspect_ratio":1.5,"height":2667,"width":4000,"src":"\/\/theoakbedstore.co.uk\/cdn\/shop\/files\/Posh_1.jpg?v=1773773892"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":57142278029695,"title":"5ft King Size","option1":"5ft King Size","option2":null,"option3":null,"sku":"Posh800-5ft-KI","requires_shipping":true,"taxable":true,"featured_image":{"id":82969801032063,"product_id":15597673349503,"position":1,"created_at":"2026-03-17T13:07:32+00:00","updated_at":"2026-03-17T18:58:12+00:00","alt":"Posh 800 Pocket Spring Mattress - The Oak Bed Store","width":4000,"height":2667,"src":"\/\/theoakbedstore.co.uk\/cdn\/shop\/files\/Posh_1.jpg?v=1773773892","variant_ids":[57142277996927,57142278029695,57142400352639,57142400385407]},"available":true,"name":"Posh 800 Pocket Spring Mattress - 5ft King Size","public_title":"5ft King Size","options":["5ft King Size"],"price":33000,"weight":23000,"compare_at_price":null,"inventory_quantity":0,"inventory_management":"shopify","inventory_policy":"continue","barcode":"","featured_media":{"alt":"Posh 800 Pocket Spring Mattress - The Oak Bed Store","id":70249979216255,"position":1,"preview_image":{"aspect_ratio":1.5,"height":2667,"width":4000,"src":"\/\/theoakbedstore.co.uk\/cdn\/shop\/files\/Posh_1.jpg?v=1773773892"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

{"id":57142400352639,"title":"3ft Single","option1":"3ft Single","option2":null,"option3":null,"sku":"Posh800-3ft-SI","requires_shipping":true,"taxable":true,"featured_image":{"id":82969801032063,"product_id":15597673349503,"position":1,"created_at":"2026-03-17T13:07:32+00:00","updated_at":"2026-03-17T18:58:12+00:00","alt":"Posh 800 Pocket Spring Mattress - The Oak Bed Store","width":4000,"height":2667,"src":"\/\/theoakbedstore.co.uk\/cdn\/shop\/files\/Posh_1.jpg?v=1773773892","variant_ids":[57142277996927,57142278029695,57142400352639,57142400385407]},"available":true,"name":"Posh 800 Pocket Spring Mattress - 3ft Single","public_title":"3ft Single","options":["3ft Single"],"price":19900,"weight":20000,"compare_at_price":null,"inventory_quantity":0,"inventory_management":"shopify","inventory_policy":"continue","barcode":"","featured_media":{"alt":"Posh 800 Pocket Spring Mattress - The Oak Bed Store","id":70249979216255,"position":1,"preview_image":{"aspect_ratio":1.5,"height":2667,"width":4000,"src":"\/\/theoakbedstore.co.uk\/cdn\/shop\/files\/Posh_1.jpg?v=1773773892"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}

Free UK Mainland Delivery

Free Standard Delivery within 7-14 working days to mainland England & Wales. More Info

UK NBF Approved Member

Visco Therapy are a UK National Bed Federation Approved Member. More Info

A UK Family Run Business

We are an independent family-run UK company with unique designs exclusive to The Oak Bed Store. About Us

The Posh Mattress is designed with an individual 800 pocket spring system, featuring 16cm springs that move independently to support your body’s natural alignment. This helps reduce motion transfer, making it a great choice for couples, while also providing consistent support across the entire sleeping surface. Reinforced edge support, with thicker 2.2mm outer springs, improves stability when sitting or sleeping near the edge and helps prevent sagging over time.

Comfort is enhanced through breathable, quilted layers, including a soft knitted fabric cover, microfiber padding, and ventilated foam quilting that promotes airflow and temperature regulation for a cooler night’s sleep. Additional high-density support foam and cotton pad layers work together to maintain posture while adding cushioning and durability.

800 pocket springs for superior support, each spring is individually wrapped which allows each spring to react independently from one another. This provides your body with better support, pressure relief, and corrects spinal alignment to a greater degree compared to coil springs. Independent wrapping also means there will be no roll together and the movement of a partner will not affect your sleep.
Rated Medium/Firm
Hypoallergenic and sanitised materials are used to manufacture this mattress.
20cm Deep (approx.) | Medium-Firm Comfort Rating | No-Turn Mattress.
Supplied Rolled and Vacuum Packed for quick and easy transport.
Comes with a 1 year guarantee

Service Information

STANDARD DELIVERY

UK - MAINLAND ENGLAND & WALES - FREE
UK - DELIVERY TO SCOTLAND* - £29.99

Doorstep Delivery within 7 - 14 Working Days
Optional Room of Choice Delivery available for £15
Monday - Saturday 7am - 8pm
Our courier will contact you directly with 24-72 hours notice of their first available delivery date
3 or 4 hour delivery timeslot issued the day before delivery

DELIVERY & ASSEMBLY

AVAILABLE FROM: £50

Assembly available for Bed Frames only
Room of Choice Delivery within 7 - 21 Working Days
Monday - Saturday 7am - 8pm
Includes Removal of Packaging for assembled Bed(s)
Removal of your Old Bed Frame available**
Available only to limited Postcodes**

LONDON EXPRESS DELIVERY

ALL POSTCODES INSIDE M25 - £99.99

NEXT DAY Delivery Available for orders placed before 11:45am
Specified Day Delivery Available if preferred
Doorstep Delivery between 7am and 8pm between Monday to Friday
We MUST be able to contact you to confirm your delivery details prior to dispatch - please ensure address and phone number are accurately provided

EXPRESS PALLET DELIVERY

UK PALLETISED DELIVERY - FROM £40^

Fast delivery option across the whole of the UK via the Palletforce distribution network
Delivery from 2-3 Working Days
Specified Day Delivery Available

PLEASE CALL OR EMAIL FOR A TAILORED QUOTE

UK OFFSHORE, IRELAND & EUROPEAN DELIVERY

Regretfully delivery is not available to UK Offshore, European or International locations.
These locations include IRELAND, NORTHERN IRELAND, ISLE OF WIGHT, GUERNSEY, ISLE OF SCILLY, SCOTTISH ISLES, JERSEY & ISLE OF MANN

* Remote Areas (AB31+, HS, IV7+, KW, PA20+, PH15+) - PLEASE CALL OR EMAIL FOR A TAILORED QUOTE
** For full details please visit Additional Delivery Options page, which forms an additional part of this Policy
^ Pallet deliveries are to the outside of your property and in most cases the delivery driver is NOT able to remove the wrapping, packaging or the pallet itself

Box #	Dimensions (H x W x D)	Weight
Box 1
Box 2
Box 3
Box 4
Box 5

Posh 800 Pocket Spring Mattress

UK Mattress Measurements

UK Mattress Size Guide

European Size Mattresses