Firmness
Medium Firm
Type
Pocket Spring
Depth (cm)
28
Number of Layers
4
Trial Period (nights)
100
Warranty (years)
5
Price Range
£214 to £408
Best Sleeping Position(s)
Certifications
Assessed from the specification published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.
Natural fillings at this price are genuinely uncommon. The cashmere top layer is breathable and wicks moisture, which means less of that clammy feeling on warmer nights, while the wool beneath insulates and regulates temperature year round. The 1,000 pocket springs move independently, so you get support that follows your shape rather than a flat, uniform push back. A 5 year guarantee and a 100-night trial through Mattress Online give you a decent safety net. It's slightly softer than some expect: the page lists it as medium, so if you want a properly firm surface this probably isn't it. For back and combination sleepers wanting natural comfort on a budget, it makes a strong case.
Key Features & what's inside
- Cashmere. A luxuriously soft natural filling that sits at the top of the mattress. It's highly breathable with good moisture-wicking properties, which means the sleep surface should stay drier and cooler through the night.
- Wool. A natural insulator with strong temperature-regulating properties. In practice, it helps keep you warm in winter and stops heat building up in summer.
- Recycled polyester fibres. A layer of recycled polyester fibres that boosts the softness and comfort of the mattress. It adds a little extra cushioning between the natural fillings and the springs.
- Pocket Springs. 1,000 individual pocket springs, a count based on the kingsize, each responding separately to pressure. That means individualised support for your sleep posture, which can help relieve aches and pains.
Layer details from mattressonline.co.uk product page, September 2026.
Who's it NOT for?
If you want a genuinely firm mattress, look elsewhere: the product page lists this as medium, and while one owner found it firmer than expected, it isn't built for those who need a solid, unyielding surface. Hot sleepers who run very warm may also want to note some owners describe it as warm.
Aspire Natural Cashmere 1000 Pocket Mattress
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Is the Aspire Natural Cashmere 1000 mattress firm or medium?
The product page lists it as medium, though at least one reviewer found it firmer than expected. It should suit most back and combination sleepers, although lightweight side sleepers may want something softer and firm-mattress fans may find it too forgiving.
Does the Aspire Natural Cashmere 1000 come with a trial?
Mattress Online lists a 100-night trial with this mattress. That's the retailer's own offer rather than a manufacturer promise, so check the terms with whichever retailer you buy from.
How many springs does the Aspire Natural Cashmere 1000 have?
It contains 1,000 pocket springs, though the listing notes this count is based on the kingsize, so smaller sizes will have fewer. Each spring moves independently, giving support that adapts to your body shape.
How deep is the Aspire Natural Cashmere 1000 Pocket Mattress?
It's 28cm deep, a reasonably generous depth that should work with standard fitted sheets. The depth comes from layers of cashmere, wool and recycled polyester fibres over the pocket spring unit.
What guarantee does the Aspire Natural Cashmere 1000 have?
The Mattress Online listing states a 5 year guarantee. The mattress is handcrafted in the UK and conforms to BS7177: 2008 fire resistance standards for domestic use.
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