Costco

Silentnight Geltex Ultraflex 3000 Mirapocket Mattress, Single in 2 Firmness Ratings – Double £493.95 – King £526.69 – Super King £600.02

Updated at 18:10 on 6 November 2026
£380.01
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About this offer

The Silentnight Geltex Ultraflex 3000 mattress combines Geltex with Ultraflex a layer of 1000 responsive mini-springs to create an advanced comfort layer which offers unrivalled support, luxurious comfort and greater breathability to prevent overheating and ensure a cooler, fresher nights sleep.
This Geltex Ultraflex comfort layer works in harmony with Silentnights trademark Mirapocket spring system to give you the best possible sleeping experience. Mirapocket is a double-layered pocket spring system which features 2000 individually nested springs that respond independently to your weight and movement for truly tailored support.
Unparalleled Breathability
Many people fail to enjoy a full and deep nights sleep because of uncomfortable overheating. Geltex has a unique open cell structure which provides unparalleled breathability, allowing air to pass through easily, preventing the body from overheating.
Perfect Pressure Relief
A unique fusion of gel molecules, foam crystals and air cells makes Geltex extremely flexible and adaptable. These advanced flexible properties distribute body weight evenly, preventing pressure points from building, helping to reduce the discomfort of aching joints and circulatory problems.
Optimal Body Support
Innovative elasticity ensures immediate spring back for ultimate support and comfort. As no two individuals are the same, Geltex responds to the individual contours of the body, providing perfect spinal alignment and support throughout the night.
Features:
Available in 2 firmness ratings: Medium Soft / Medium Firm
Advanced 11cm box top comfort layer features Geltex & Ultraflex 1000 mini springs for unrivalled support, luxurious comfort & greater breathability
Supported by Silentnights Mirapocket spring system featuring 2000 individually nested springs
Mattress Depth 6cm
Single Sided: No need to turn, simply rotate at least once every 3 months
Handmade in the UK

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