Firmness
Type
Latex
Depth (cm)
22
Number of Layers
3
Trial Period (nights)
Warranty (years)
15
Price Range
£999 to £1,959
Best Sleeping Position(s)
Certifications
Assessed from the specification published by MattressNextDay, captured September 2026, and from regular price comparison across our UK retail partners.
Natural Talalay latex is the main draw here. It's responsive rather than slow-moving, so you get pressure relief around hips and shoulders while still finding it easy to change position. The medium feel suits most sleepers, although anyone who prefers a properly firm base may want to look elsewhere. Heat is handled in two ways: a cooling sleep surface designed to sit around 1°C below body temperature, and an aerated foam core that boosts airflow. If you're a hot sleeper who has struggled with memory foam, that combination matters. Add the 15-year manufacturer's guarantee and UK manufacture, and the price starts to make sense.
Key Features & what's inside
- Dunlopillo® Plus Sleep Surface. A cooling fabric designed to stay around 1°C below your body temperature. In practice, that means the surface feels fresh when you get in rather than warming up quickly.
- Natural Talalay Latex. A deep layer of natural Talalay latex that gently contours to your body. You'll feel adaptive comfort and pressure relief without sinking in the way you would on memory foam.
- VENTRA™ Core Performance System. An aerated foam core engineered to boost airflow and breathability. It helps the mattress stay cool year round rather than trapping heat beneath you.
Layer details from mattressnextday.co.uk product page, September 2026.
Who's it NOT for?
If you want a firm mattress, the medium feel may be too forgiving. Budget shoppers should look elsewhere, as even the smallest size starts at £999. And if a sleep trial is important to you, be aware the listing we sourced doesn't mention one, so check terms carefully before ordering.
Dunlopillo Sovereign Latex Mattress
Is the Dunlopillo Sovereign firm or soft?
It's a medium feel. The natural Talalay latex contours to your body for pressure relief while staying supportive, which suits most sleepers. If you specifically want a firm surface, this probably isn't the one for you.
How long is the guarantee on the Dunlopillo Sovereign?
It comes with a Dunlopillo 15-year manufacturer's guarantee, which is longer than most brands offer and a reasonable reflection of how well latex tends to last.
Does the Dunlopillo Sovereign sleep hot?
It's designed not to. The sleep surface uses a cooling fabric intended to stay around 1°C below body temperature, and the aerated foam core boosts airflow. If overheating has put you off foam mattresses before, this construction is aimed squarely at that problem.
What sizes does the Dunlopillo Sovereign come in?
It's available in UK Single, UK Double, UK King, UK Super King and EU Single, with prices ranging from £999 to £1,959 depending on size.
Is the Dunlopillo Sovereign suitable for allergy sufferers?
Yes, it's certified hypoallergenic, and it's also vegan friendly. It meets the BS7177: 2008 fire resistance standard and is made in the UK by an NBF-approved manufacturer.
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