Harrison Spinks Heaven 21500 Medium Mattress
The Harrison Spinks Heaven 21500 is a pocket spring mattress in a medium firmness, available in UK Single, Double, King and Super King, plus an EU Single.
- Minimises partner disturbance
- Medium feel for side & back sleepers
- From a long-established British maker
£1,486.65
Get the lowest price we've found
The Harrison Spinks Heaven 21500's medium tension suits most sleepers, although anyone who prefers a firm, unyielding surface may want to look elsewhere. It sits firmly at the premium end of the market, so this is a considered purchase rather than an impulse buy. Mattressman lists free next day delivery and a 60-night trial with this mattress, though those are the retailer's own terms rather than a Harrison Spinks promise.
Mattress specifications
Firmness
Medium
Type
Pocket Spring
Depth (cm)
Number of Layers
Trial Period (nights)
60
Warranty (years)
Price Range
£1,486 to £3,209
Best Sleeping Position(s)
Side Sleeping
Back Sleeping
Combination Sleeping
Certifications
Assessed from the specification published by Mattress Man, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
Pocket springs move independently of one another, which means less motion transfer: if your partner turns over, you're less likely to feel it. The medium firmness is a sensible middle ground, forgiving enough for side sleepers to sink at the shoulder while still offering support for back sleepers. The price is high, but Harrison Spinks is a long-established British maker and you're paying for that pedigree. If you buy through Mattressman, their listed 60-night trial gives you a decent window to change your mind, which takes some of the risk out of buying. Just check the terms at whichever retailer you use, as they can differ.
Key features & layer details
We’re still collecting information on this mattress. Unfortunately, we don’t have its key features yet.
Best suited for?
Side sleepers
The medium firmness is forgiving enough to let the shoulder sink in, which means side sleepers should get cushioning where they need it.
Back sleepers
Medium tension still offers support under the body, so back sleepers get a sensible middle ground without the surface feeling too hard.
Couples
Pocket springs move independently of one another, which means less motion transfer, so you're less likely to feel your partner turning over.
Combination sleepers
A medium feel that suits most sleepers makes it a flexible choice if you shift between your side and back through the night.
If you need a firm mattress for a bad back or you sleep exclusively on your front, a medium tension may feel a little too soft. Budget shoppers should look elsewhere too: there are plenty of capable pocket spring mattresses for less.
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.
Harrison Spinks Heaven 21500 Medium Mattress
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FAQ's
Is the Harrison Spinks Heaven 21500 firm or soft?
It's a medium firmness, which suits most sleeping positions. Side and back sleepers tend to get on well with medium tension, although if you specifically want a firm feel this probably isn't the one for you.
How much does the Harrison Spinks Heaven 21500 cost?
It depends on the size you choose, and the price table on this page shows the current price for each size. It's a premium price, reflecting Harrison Spinks' position as a high-end British manufacturer.
What sizes does the Heaven 21500 come in?
It's available in UK Single, UK Double, UK King and UK Super King, plus an EU Single for continental bed frames.
Does the Harrison Spinks Heaven 21500 come with a trial?
Mattressman lists a 60-night trial and free next day delivery with this mattress. Bear in mind these are the retailer's own terms, not a Harrison Spinks guarantee, so they may not apply if you buy elsewhere.
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