MattressNextDay Cashmere Ortho 1000 Pocket British Wool Mattress
The Cashmere Ortho 1000 Pocket British Wool Mattress from MattressNextDay is a firm pocket spring mattress with natural fillings.
- Natural silk, cashmere & wool fillings
- Wool helps regulate temperature
- Minimises partner disturbance
£279
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The Cashmere Ortho 1000 pairs 1,000 pocket springs, which move independently to support your body's shape, with layers of silk, cashmere and traceable British wool. At 28cm deep it has a traditional, substantial feel. It's made in the UK by an NBF-approved manufacturer and rated hypoallergenic, which is reassuring if allergies disturb your sleep. The firm tension suits back and front sleepers who want solid support, although lightweight side sleepers may find it a little too unyielding around the shoulders and hips.
Mattress specifications
Firmness
Firm
Type
Pocket Spring
Depth (cm)
28
Number of Layers
4
Trial Period (nights)
Warranty (years)
1
Price Range
£279 to £539
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Certifications
BS 7177
Assessed from MattressNextDay's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
Natural fillings at an affordable starting price are the main draw. Silk, cashmere and 100% traceable British wool sit above the springs, and the wool in particular helps regulate your temperature, which matters if you tend to overheat at night. The 1,000 pocket springs work independently of one another, so you feel less of a partner's movement and more even pressure relief. Delivery is free and next day, useful if you need a mattress quickly. Yes, the guarantee is only 1 year, which is shorter than many brands offer, but the affordable starting price keeps the risk modest. Sizes run from UK Single to Super King, plus EU sizes.
Key features & layer details
Silk
Soft in texture and light in weight, silk forms the top comfort layer. It gives the sleep surface a gentle, luxurious feel.
Cashmere
A rare filling that is softer and finer than wool, typically found in quality mattresses. It adds a touch of plushness above the firmer layers below.
Authentic Traceable British Wool
This wool is 100% traceable from farm to shop and comes from British Cheviot sheep, known for a strong yet soft fleece. It provides a natural bounce and helps regulate your temperature through the night.
1000 Pocket Springs
Each spring sits in its own fabric pocket, so they work completely independently of one another. That means better pressure-relieving support that responds to your body rather than the whole bed moving at once.
Layer details from mattressnextday.co.uk product page, September 2026.
Best suited for?
Back sleepers
The firm tension and 1,000 pocket springs give solid, even support, which means your body stays level instead of sinking into the mattress.
Front sleepers
Firm support from the pocket springs helps keep your hips from sinking too far, so you stay comfortably level when lying on your front.
Allergy sufferers
It is rated hypoallergenic and filled with natural silk, cashmere and British wool, which is reassuring if allergies tend to disturb your sleep.
Warm sleepers
The traceable British wool layer helps regulate your temperature through the night, which suits anyone who tends to overheat in bed.
Couples
Each spring sits in its own fabric pocket and works independently, so you feel less of your partner's movement during the night.
This is a firm mattress, so if you sleep on your side and are on the lighter side, it may feel too hard at the shoulders and hips. It's also not ideal if you want a long guarantee, as cover is 1 year, or if you prefer the contouring feel of memory foam.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
MattressNextDay Cashmere Ortho 1000 Pocket British Wool Mattress
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FAQ's
How firm is the Cashmere Ortho 1000 mattress?
MattressNextDay describes it as firm. That means a supportive, less sinky surface which suits back and front sleepers, though lightweight side sleepers may find it slightly too solid.
What is the Cashmere Ortho 1000 mattress made of?
It combines a silk top comfort layer, cashmere, traceable British wool from Cheviot sheep and 1,000 individually pocketed springs. The mattress is 28cm deep, made in the UK and hypoallergenic.
Does the Cashmere Ortho 1000 mattress come with a guarantee?
Yes, MattressNextDay offers a 1-year guarantee. That's shorter than many brands provide, so factor it in against the reasonable price.
What sizes does the Cashmere Ortho 1000 come in?
It's available in UK Single, Small Double, Double, King and Super King, plus EU Single, Double and King.
Is the Cashmere Ortho 1000 good for hot sleepers?
It should help. The British wool layer naturally regulates temperature, and pocket springs allow more airflow than solid foam, so it's a sensible pick if you tend to sleep warm.
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