Harrison Spinks Jade 10000 Pocket Small Double Mattress (Firmer Feel)
Harrison Spinks

Harrison Spinks Jade 10000 Pocket Small Double Mattress (Firmer Feel)

The Harrison Spinks Jade 10000 Pocket Mattress in its Firmer Feel version is a pocket spring mattress with a firm rating, which means noticeably more pushback than a medium and better suited to those who like sleeping on top of a mattress rather than sinking into it.

  • Firm feel for back & front sleepers
  • Minimises partner disturbance
  • From a long-established British maker

£1,399

Size: Small Double. Available at Mattress Online

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Where can I buy the Harrison Spinks Jade 10000 Pocket Small Double Mattress (Firmer Feel)?

Below are the best prices for the Harrison Spinks Jade 10000 Pocket Mattress (Firmer Feel) in a Small Double. Available from (9) trusted retailers.

Harrison Spinks Jade 10000 Pocket Mattress (Firmer Feel)

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Prices last checked:
11th November 2026

Mattress dimensions for the Harrison Spinks Jade 10000 Pocket Small Double Mattress (Firmer Feel)

Length: 190cm

Width: 120cm

(4ft x 6ft 3in)

Minimum room size: 2.4m x 2.8m

Mattress details

Mattress Details for the Harrison Spinks Jade 10000 Pocket Small Double Mattress (Firmer Feel)

Mattress

Harrison Spinks Jade 10000 Pocket Mattress (Firmer Feel)

Size

UK Small Double (4ft x 6ft 3in)

Firmness

Firm

Construction

  • Pocket Spring

  • Wool

  • Natural

Depth (cm)

Layers

Layer Details

Key benefits

Key Benefits of the Harrison Spinks Jade 10000 Pocket Small Double Mattress (Firmer Feel)

  • Real room for one: At 30cm wider than the UK single, this size gives a solo back or front sleeper genuine space to stretch on a firm surface.
  • Fits rooms a double can't: The UK small double is 15cm narrower than the UK double, which can be the difference between a door that clears the bed and one that doesn't.
  • Firm feel, less sink: The firm pocket spring build keeps you sleeping on top of the mattress rather than into it, welcome if softer beds leave you feeling swallowed.
  • Sensible for guest rooms: Pocket springs move independently, so when visiting couples do share it for a night or two, one person's turning disturbs the other less.
  • Standard 4ft sizing: The small double is a standard UK size, so frames and 4ft fitted sheets are easy to find, with a regular double duvet on top.

Who should buy the Harrison Spinks Jade 10000 Pocket Small Double Mattress (Firmer Feel)?

This size suits you if...

You sleep alone most nights, want more width than a UK single offers, and prefer a firm feel that supports rather than cradles. Or your bedroom is on the compact side, perhaps a box room, loft conversion or the smaller bedroom after downsizing, and a UK double would crowd it. It also makes sense for a guest room that hosts the occasional couple rather than anyone nightly.

Consider another size if...

You share the bed with a partner every night. At 120cm wide, a UK small double is tight for two long term, so we'd recommend the UK double instead; it's 15cm wider and needs a room of at least 2.6m x 2.8m.

FAQ's

Frequently Asked Questions About the UK Small Double

Is a small double big enough for a firm mattress to feel comfortable for two?

For occasional nights, yes. The pocket springs move independently, so a partner's movement carries less across the 120cm width than an open coil design would. For a couple sleeping together every night, the UK small double is a squeeze, and we'd point you to the UK double, which is 15cm wider.

What room size do I need for the Jade 10000 in a UK small double?

We suggest allowing at least 2.4m x 2.8m. That gives you space to walk around the bed and open the door comfortably. If your room can take 2.6m x 2.8m, the UK double becomes an option; below our suggested minimum, the UK single may be the better fit.

How much bigger is a small double than a single mattress?

The UK small double is 30cm wider than the UK single, and both are the same 190cm length. That extra width is the whole point of this size for a solo sleeper: real space to spread out on a firm surface without stepping up to a full double footprint.

Where can I buy the Harrison Spinks Jade 10000 Firmer Feel in a small double?

Stock changes, so the most reliable answer is the live price table on this page, which updates as retailers change their listings. When you get to checkout, do confirm you're ordering both the Firmer Feel version and the UK small double size, as the Jade 10000 comes in several firmness options and five sizes.

Is a small double a good choice for a teenager?

Often, yes. A teenager who has outgrown a UK single gets 30cm more width without losing the floor space a UK double would take. The firm feel of this particular mattress suits back and front sleepers best; a lightweight side sleeper may find it a little unforgiving at the shoulder and hip.