Harrison Spinks Sanctuary 9500 Medium Mattress
The Harrison Spinks Sanctuary 9500 is a pocket spring mattress with a medium feel, which means the springs move independently to follow your shape rather than pushing back as one solid unit.
- Medium feel suits most sleepers
- Minimises partner disturbance
- From a long-established heritage maker
£1,019.15
Get the lowest price we've found
The Harrison Spinks Sanctuary 9500 sits firmly in the premium bracket. It comes in UK Double, King and Super King, plus an EU Single. Detailed construction information, such as depth and spring count, isn't published on the retailer listing we sourced, so if those specifics matter to you it's sensible to ask before ordering. As it stands, it's a medium-feel pocket spring option from a well-established Yorkshire bedmaker, at a price that reflects that pedigree.
Mattress specifications
Firmness
Medium
Type
Pocket Spring
Depth (cm)
Number of Layers
2
Trial Period (nights)
60
Warranty (years)
Price Range
£1,019 to £1,909
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?
A medium feel suits most sleepers, sitting between the softer surface side sleepers tend to prefer and the firmer support back sleepers often want. If you sleep in a mix of positions, that middle ground is usually the safest bet. Pocket springs also mean less motion transfer, so a restless partner is less likely to wake you. Buying through Mattressman gets you a 60-night trial and free next day delivery, though be clear these are that retailer's own terms rather than a Harrison Spinks promise, so they won't necessarily apply elsewhere. Yes, the starting price is a serious outlay, but Harrison Spinks is a heritage manufacturer, and you're paying for that provenance.
Key features & layer details
Wool and hemp blended fibres
The top layer is a blend of wool and hemp fibres, chosen for enhanced breathability. For you, that should mean a surface that lets heat and moisture escape more easily, which helps if you tend to run warm in bed.
Pocket springs
Beneath the fibres sit 9500 individually wrapped springs, under temperature-regulating wool and hemp. Because each spring works on its own, the mattress can respond to your body in separate areas, and it gives the medium feel its support.
Layer details from mattressman.co.uk product page, October 2026.
Best suited for?
Combination sleepers
A medium feel sits between softer and firmer surfaces, which makes it a safe middle ground if you move between several positions overnight.
Couples
Pocket springs mean less motion transfer, so a restless partner is less likely to wake you when they turn over or get up.
Back sleepers
The medium firmness sits close to the firmer support back sleepers often want, while still giving a little more cushioning than a hard mattress.
If you're a lightweight side sleeper, a medium feel may be slightly too firm to let your shoulder and hip sink in properly. It's also a poor fit for tight budgets, given the starting price. And if you need full construction specs before committing, the listing simply doesn't provide them.
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 Sanctuary 9500 Medium Mattress
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FAQ's
How firm is the Harrison Spinks Sanctuary 9500?
It's listed as medium, the middle of the firmness scale. In practice that means a balanced feel: enough give for side sleeping, enough support for your back. Lightweight side sleepers may find it a little firm, while heavier sleepers who need a very supportive surface might prefer something firmer.
What sizes does the Sanctuary 9500 come in?
Four sizes are available: UK Double, UK King, UK Super King and EU Single. Note there's no standard UK Single, so if you need one for a British single bed frame, this isn't the mattress for you.
Does the Harrison Spinks Sanctuary 9500 come with a trial period?
Mattressman lists a 60-night trial with this mattress. That's the retailer's own offer rather than a Harrison Spinks guarantee, so it applies when you buy from Mattressman and may not be available through other sellers. Always check the trial terms with whichever retailer you order from.
How much does the Sanctuary 9500 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, but it reflects Harrison Spinks' position as a heritage British bedmaker rather than a budget bed-in-a-box brand.
How quickly can the Sanctuary 9500 be delivered?
Mattressman offers free next day delivery on this mattress. That's the retailer's own service, so delivery speed and cost may differ if you buy through another seller.
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