Sleep Story Cool Sleep Mattress
The Sleep Story Cool Sleep is a firm hybrid mattress, 27cm deep, combining open coil springs with Reflex foam under a microquilted Tencel® cover.
- Moisture-wicking cover keeps you cool
- Supports right to the edge
- Non-turn & hypoallergenic
£349
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The Sleep Story Cool Sleep has a Tencel cover, a natural fabric that helps manage moisture, which means less of that clammy feeling if you tend to run warm at night. It's British-made, non-turn, and comes with a 20-year guarantee, which is longer than most brands offer. It comes in six sizes, from small single up to super king. If you like a properly firm feel and want cooling without a big spend, it's a sensible shortlist candidate, although lighter side sleepers may find it a little unforgiving.
Mattress specifications
Firmness
Firm
Type
Hybrid
Depth (cm)
27
Number of Layers
3
Trial Period (nights)
Warranty (years)
20
Price Range
£349 to £599
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Certifications
Assessed from Sleep Story'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?
The main draws here are temperature control and firm support at a modest price. The Tencel cover wicks moisture away, which means a drier, cooler sleeping surface, and it's a good fit for sensitive skin. The mattress is hypoallergenic too. Open coil springs with reinforced sprung edges support you right to the edge of the bed, handy if you share and end up sleeping near the side. It's non-turn, so no wrestling it over every few months, though rotating it is still sensible. Open coil is a simpler spring system than pocket springs, so couples may notice more movement transfer. But with a 20-year guarantee behind it, the value case is strong.
Key features & layer details
Microquilted cover
A quilted cover made with eco-friendly Tencel®, a natural fabric that helps control moisture, so the surface stays drier through the night. It's also a gentle choice if you have sensitive skin.
Reflex foam
A layer of Reflex foam, a firmer, more responsive alternative to memory foam. You get cushioning without the slow, sinking feel, which suits people who move around in the night.
Open coil springs
Open coil springs form the support core, with reinforced sprung edges so you can use the full width of the mattress without the sides collapsing. This is what gives the mattress its firm, supportive feel.
Layer details from furniturevillage.co.uk product page, September 2026.
Best suited for?
Warm sleepers
The Tencel cover helps manage moisture, which means a drier, cooler surface and less of that clammy feeling if you tend to run warm at night.
Allergy sufferers
Hypoallergenic construction and a gentle Tencel cover make this a sensible pick if you want a mattress that suits sensitive skin.
Combination sleepers
Reflex foam is more responsive than memory foam, so you get cushioning without a slow, sinking feel when you move around in the night.
Back sleepers
Open coil springs give a firm, supportive core, which means a properly firm feel that suits anyone who likes to lie flat and well held.
Eco-conscious buyers
The quilted cover uses eco-friendly Tencel, a natural fabric, and the mattress is British-made, which gives a greener angle to its cooling features.
This is a firm mattress, so lightweight sleepers and dedicated side sleepers may find it presses on shoulders and hips rather than cushioning them. Couples who are easily disturbed should also think twice: open coil springs move as one unit, so you'll feel a partner's movements more than you would with pocket springs.
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.
Sleep Story Cool Sleep Mattress
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Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
Is the Sleep Story Cool Sleep mattress firm or soft?
Sleep Story describes it as firm. That suits back and front sleepers, and heavier sleepers who need plenty of support, but lighter side sleepers may find it a little too solid at the shoulder and hip.
How long is the guarantee on the Sleep Story Cool Sleep mattress?
It comes with a 20-year guarantee, which is longer than most brands offer. As with any guarantee, keep your proof of purchase and check the terms for what's covered.
Does the Sleep Story Cool Sleep mattress need turning?
No, it's a non-turn design, so you never need to flip it. Rotating it head to toe now and then is still a good habit, as it helps the comfort layers wear evenly.
Is the Sleep Story Cool Sleep mattress good for hot sleepers?
It's designed with hot sleepers in mind. The cover uses Tencel®, a natural fabric that helps control moisture, and the sprung core allows air to move through the mattress, so it should feel cooler than an all-foam design.
How much does the Sleep Story Cool Sleep mattress cost?
It depends on the size you choose, and the price table on this page shows the current price for each size. Six UK sizes are available, from small single through to super king. Delivery is quoted within 14 days, with a paid premium delivery service for mattresses.
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