Firmness
Medium Firm
Type
Pocket Spring
Depth (cm)
28
Number of Layers
5
Trial Period (nights)
100
Warranty (years)
5
Price Range
£299 to £629
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 the main draw. Cashmere, wool and silk all breathe well and help regulate temperature, so if you tend to sleep warm this is a sensible pick over synthetic-topped rivals. The two-tier spring system, 2,000 mini pocket springs above 1,000 traditional ones, gives adaptive support that responds to your shape rather than pushing back uniformly. Yes, it is very heavy to rotate, but that weight reflects substantial fillings rather than padding for show. Mattress Online lists a 100-night trial and free delivery to most UK locations, though check terms if you buy elsewhere. From £299.00 with sizes from small single to super king, it offers honest value.
Key Features & what's inside
- Cashmere. A luxuriously soft natural filling that breathes well and wicks moisture, which means less clamminess on warm nights. It sits at the sleep surface for a gentle first feel.
- Wool. Wool is a natural insulator with strong temperature-regulating properties. In practice it helps keep you warm in winter and cooler in summer, making it useful all year round.
- Silk. Silk adds a sumptuous, breathable layer of comfort. It's resilient too, so the surface should keep its feel rather than flattening quickly.
- Mini Pocket Springs. 2,000 small, individually cased springs sit slightly compressed to retain their springiness. They add a responsive comfort layer with soothing pressure relief for hips and shoulders.
- Pocket Springs. 1,000 traditional pocket springs, each encased in its own cloth pocket, react individually to your shape. That means adaptive support and less motion transfer to a partner.
Layer details from mattressonline.co.uk product page, September 2026.
Who's it NOT for?
This isn't the one for lightweight side sleepers, who may find the medium to firm feel a touch unyielding on the shoulder. Owner reviews note it's very heavy, so if you'd struggle to rotate a mattress with a second pair of hands, look at something lighter. Fans of a deep, sink-in feel should look elsewhere too.
Aspire Natural Cashmere and Silk 3000 Pocket Mattress
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How firm is the Aspire Natural Cashmere and Silk 3000 mattress?
It's described as medium to firm, which suits most back and front sleepers and heavier side sleepers. Lightweight side sleepers may find it slightly too firm at the shoulder. Owner reviews mention the firmness stays consistent over time.
Does the Aspire Cashmere and Silk 3000 come with a trial?
Mattress Online lists a 100-night trial on this mattress. That's the retailer's own offer rather than a manufacturer guarantee, so if you buy from a different shop, check their returns terms before ordering.
Is the Aspire Cashmere and Silk 3000 good for hot sleepers?
It's a strong choice. Cashmere, wool and silk are all naturally breathable, and the wool layer actively regulates temperature, so you should feel less heat build-up than with a foam-topped mattress.
How many springs does the Aspire 3000 pocket mattress have?
3,000 in total: 2,000 mini pocket springs in the comfort layer and 1,000 traditional pocket springs below. Note the listing states this count is based on the kingsize, so smaller sizes will contain fewer springs.
What guarantee does the Aspire Cashmere and Silk 3000 have?
The product page lists a 5 year guarantee. The mattress is handcrafted in the UK, hypoallergenic and fire resistant, conforming to BS7177: 2008.
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