Aspire Natural Cashmere and Silk 3000 Pocket Super King Mattress
The Aspire Natural Cashmere and Silk 3000 Pocket Mattress is a medium to firm pocket spring mattress with natural fillings of cashmere, wool and silk over 3,000 springs (a count based on the kingsize).
- Breathable cashmere, wool & silk
- Two-tier springs adapt to your shape
- Eases pressure at hips & shoulders
£629
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Aspire Natural Cashmere and Silk 3000 Pocket Mattress
More available sizes
Mattress details
Mattress
Aspire Natural Cashmere and Silk 3000 Pocket Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Natural
Depth (cm)
28
Layers
5
Layer Details
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.
Key benefits
- 90cm each for two sharers: With 90cm each for two people sharing, you can both stretch out fully without ever meeting in the middle.
- Distance beats motion isolation: The 1,000 traditional pocket springs already limit motion transfer, but at this width sheer distance does most of the work against a fidgety partner.
- Room for the whole household: When children pad in at 3am or the dog claims a corner, everyone still gets a genuine share of the bed.
- Natural fillings across a big surface: Cashmere, wool and silk breathe and regulate temperature, which matters more when two warm bodies share one mattress all night.
- 30cm wider than a UK king: The UK super king is 30cm wider than the UK King and the same length, a difference you feel every single night.
This size suits you if...
You share the bed every night and want the most space any standard UK size offers, a restless partner or early-morning visits from children have made your current bed feel crowded, and your bedroom comfortably clears the 3m x 2.9m minimum we suggest for a UK super king.
Consider another size if...
Your room falls short of the 3m x 2.9m we suggest, or you'd struggle to rotate a very heavy mattress at this width. We'd recommend the UK king instead: 30cm narrower, the same length, and it needs at least 2.7m x 2.9m.
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FAQ's
How much space do two people get on the Aspire 3000 super king?
You get 90cm each for two people sharing, the most of any standard UK size. That's enough for each of you to sleep in your own space entirely, so a partner who turns over frequently, or a child who joins you at dawn, is far easier to ignore than on a smaller size.
Is the Aspire Cashmere and Silk 3000 super king hard to rotate?
Across verified owner reviews this mattress is described as very heavy, and that's before you scale it up to 180 x 200cm. Plan on two people to rotate it, and clear space around the bed first. If regular solo rotation matters to you, a smaller size or a lighter mattress would be a better fit.
Do I need a bigger room for the super king than the UK king?
Yes, slightly. We suggest at least 3m x 2.9m for the UK super king, against 2.7m x 2.9m for the UK king. Before committing, check door swing, wardrobe access and the walkway on each side of the bed, because at this width a few centimetres of clearance makes a real difference day to day.
Is the Aspire super king a good choice for families sharing with children or pets?
It's one of the better setups for it. The medium firm feel keeps the surface stable when a child climbs in, the pocket springs respond to each body individually, and the width means an extra small visitor doesn't push either adult to the edge. Wool and cashmere fillings also help when three bodies raise the temperature.
How much bigger is the Aspire 3000 in a UK super king than a UK double?
The UK super king is 45cm wider than the UK double and 10cm longer, which turns a snug shared bed into a genuinely spacious one. If you're upgrading from a double as a couple, the extra width is the difference you'll notice most. Compare the retailers listed on this page for current pricing on both sizes.