Harrison Spinks Alwoodley 9750 Pocket Mattress

Assessed from the specification published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.

The main draw here is the natural fill. Yorkshire wool and mohair on top, with cotton, flax and hemp beneath, which means the mattress breathes and wicks moisture rather than trapping heat the way synthetic foams can. If you're a hot sleeper, that matters. Underneath sit over 9,000 individual pocket springs, each moving independently, so you get support tailored to your shape and less disturbance from a partner shifting about. It's hypoallergenic and naturally antibacterial too, a genuine plus for allergy sufferers. One downside: the retailer notes the spring count may differ slightly from the 9750 in the name. At 29cm deep, check your fitted sheets will stretch to it.

Warm sleepers
Wool, cotton, flax and hemp fillings are naturally breathable and wick away moisture, so you should stay cooler than on a foam-heavy mattress.

Couples
Over 9,000 individual pocket springs each react independently, which means less motion transfer when your partner moves about during the night.

Allergy sufferers
The natural fillings are hypoallergenic and naturally antibacterial, which makes this a sensible choice if you want to avoid synthetic materials in your bed.

Eco-conscious buyers
Yorkshire wool, mohair, cotton, flax and hemp make up entirely natural fillings, and the mattress is handcrafted in the UK with National Bed Federation approval.

Back sleepers
A Medium Firm feel with pocket springs that shape support to your body suits those who want a balanced surface rather than a plush sink-in.

This isn't the mattress for tight budgets. If you prefer a memory foam hug, you'll find the springy natural feel quite different, and some owners reported it felt firmer than expected, so lightweight side sleepers may want to use the trial period carefully before committing.

How firm is the Harrison Spinks Alwoodley 9750 mattress?

The Mattress Online listing describes it as Medium, a middle-of-the-road feel that suits most back and combination sleepers. Some owner reviews mention it feeling firmer than expected, so if you're a lightweight side sleeper it may be slightly firmer than you'd like.

Does the Harrison Spinks Alwoodley 9750 come with a trial period?

Mattress Online lists a 100-night trial with this mattress. That's the retailer's own offer rather than a Harrison Spinks guarantee, so if you buy elsewhere, check that seller's terms before ordering.

What is the Harrison Spinks Alwoodley 9750 made of?

Entirely natural fillings: 100% Yorkshire wool blended with mohair, plus cotton, flax and hemp fibres, over a base of more than 9,000 pocket springs. It's handcrafted in the UK, hypoallergenic, naturally antibacterial and approved by the National Bed Federation.

What sizes does the Harrison Spinks Alwoodley 9750 come in?

Five sizes: UK Single, UK Double, UK King, UK Super King and UK Emperor. The mattress is 29cm deep across the range.

How long is the guarantee on the Harrison Spinks Alwoodley 9750?

The mattressonline.co.uk listing states a 5 year guarantee. As this appears on a retailer's page rather than the brand's own site, it's sensible to confirm the guarantee terms with your chosen seller at the point of purchase.