Firmness
Type
Hybrid
Depth (cm)
29
Number of Layers
3
Trial Period (nights)
Warranty (years)
5
Price Range
£499 to £899
Best Sleeping Position(s)
Certifications
Assessed from Tuft & Springs's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
If you sleep warm but like the cradling feel of memory foam, this is the sensible middle ground. The Cooling Gel Fusion™ layer is cool to the touch and contours to relieve pressure points, while the 1500 pocket springs beneath move independently, which means your partner's tossing and turning is less likely to travel across the bed. The medium firm feel gives back and stomach sleepers the support they tend to need. It's hypoallergenic and vegan friendly, which is still rare in hybrids, and it meets the BS7177: 2008 low hazard fire resistance standard. Free next day delivery covers almost all of mainland UK, though some addresses carry a small fee.
Key Features & what's inside
- Knitted Cover. A soft knitted cover that's breathable, which means heat can escape rather than build up around you. It helps keep your temperature even through the night.
- Cooling Gel Fusion™ Memory Foam. Gel memory foam that feels cool to the touch and gently contours to your body. You get pressure relief at the shoulders and hips without the warmth traditional memory foam is known for.
- 1500 Pocket Springs. Each of the 1500 springs sits in its own fabric pocket and works independently of its neighbours. That means support adjusts to your shape and movement transfers less across the mattress.
Layer details from mattressnextday.co.uk product page, September 2026.
Who's it NOT for?
If you prefer a soft, sink-in feel, the medium firm rating will likely feel too solid, and lightweight side sleepers may notice pressure at the shoulder. It's also a poor fit if you actively dislike any memory foam sensation, as the gel layer still has that slow, contouring character.
Tuft & Springs Affinity Ortho 1500 Gel Hybrid Mattress
How firm is the Tuft & Springs Affinity Ortho 1500?
It's rated medium firm. That suits back and stomach sleepers well, and most combination sleepers too, although lighter side sleepers may find it a little firm around the shoulders.
Does the Affinity Ortho 1500 sleep hot?
It's designed with heat in mind. The Cooling Gel Fusion™ memory foam is cool to the touch, the knitted cover is breathable, and the pocket spring core allows air to move, so it should sleep noticeably cooler than an all-foam mattress.
How deep is the Tuft & Springs Affinity Ortho 1500 mattress?
It's 29cm deep. That's a generous depth, so check that your fitted sheets are deep enough, particularly if you're used to a slimmer mattress.
What guarantee does the Affinity Ortho 1500 come with?
It comes with a 5-year guarantee. The mattress is made in the UK by an NBF-approved manufacturer, which offers some reassurance on build quality.
What sizes does the Affinity Ortho 1500 come in?
It's available in UK Single, Double, King and Super King, with prices from £499 to £899 depending on the size you choose.
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