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)
Certifications
Assessed from MattressNextDay's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
Natural fillings at this 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 price range of £279 to £539 keeps the risk modest. Sizes run from UK Single to Super King, plus EU sizes.
Key Features & what's inside
- 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.
Who's it NOT for?
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.
MattressNextDay Cashmere Ortho 1000 Pocket British Wool Mattress
Across 316 reviews on the MattressNextDay product page, the mattress holds a 4.9 rating, with customers praising its comfort, firmness and quality. Owners also mention improved sleep, good value for money and helpful delivery service.
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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. Prices range from £279 to £539 depending on size.
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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