The Westbourne Gel Hybrid Firm

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The firmest of our three Gel Hybrid mattresses. The cool sleeping surface only gel can give, with the deepest support layer underneath.

Gel hybrid is what we'd recommend to anyone who runs warm at night, has tried memory foam and found it claustrophobic, or sleeps next to a partner who heats up the bed. The gel-infused foam comfort layer draws heat away from the body and disperses it, so the surface stays cool through the night rather than warming up the way regular foam does. Under that comfort layer is a base of 3,000 individually pocketed springs, the highest spring count in the Gel Hybrid range, packed tightly enough to hold heavier frames and back sleepers level through the night.

This is the tier for back sleepers, heavier frames, larger couples sharing a bed, and anyone who wakes up sore on a softer mattress. The right call if you sleep hot and need firmer support, the combination that most mattresses struggle to deliver. Hot sleepers usually have to compromise on support, firmer sleepers usually have to compromise on temperature. Gel Hybrid Firm handles both.

If you're choosing across the three Gel Hybrid tiers, this is the call. Kensington is the soft, cushioned start. Belgravia is the medium, the most universal choice. Westbourne is the firm, the heaviest support layer. Same cool-sleeping gel character throughout, three different tensions.

Hand-built in our British workshop. Gel-infused foam comfort layer over 3,000 individually pocketed springs. Available in all sizes, single through Super King.

15 year mattress guarantee. White glove delivery anywhere in mainland UK.

If you're not sure which tension to choose, we'd rather you got it right than rushed. Get in touch and we'll talk through what you sleep on now.

Gee Golisz, Founder

7 Year Warranty on Mattresses

Your mattress is free delivered and installed by our own expert teams, not third-party couriers.

Where Plush Comfort Meets Precision Support

This mattress gently hugs the body while keeping the spine perfectly aligned, offering uninterrupted sleep and long-lasting durability—crafted for those who love softness without compromise.

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Handcrafted in the UK

Every mattress is expertly handcrafted by skilled British artisans with decades of experience in sleep engineering. From precision stitching to carefully layered comfort materials, each piece is crafted with pride — not rushed through mass production.

Made in small batches for superior quality control, ensuring lasting comfort, support, and durability. When you choose The Sleep Co, you’re choosing authentic British craftsmanship built to stand the test of time.

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The Westbourne Gel Hybrid Firm
The Westbourne Gel Hybrid Firm
£1,099.00
or £183.16/mo at 0% APR