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Alderney by Sealy at Mattressman

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Alderney Main Image


With 1000 independently moving pocket springs and 4cm of supportive Geltex®, the Alderney is designed to offer a firmer feel and is ideal for back and side sleepers. The mattress is also zonally constructed to keep your spine nicely aligned and provide additional support beneath some of the heavier parts of your body.
The top 4cm of the Alderney feature a unique gel-infused foam called Geltex® that conforms to the shape of your body whilst maintaining the perfect temperature for deep sleep, plus the textiles that make up the mattress are made from Tencel, an eco-friendly fibre that’s more absorbent than cotton, softer than silk and cooler than linen.
Other signs of top-quality manufacture include Purotex (a probiotic treatment approved by Allergy UK that naturally protects against the build-up of allergens), flag-stitched handles and a 5-year warranty.

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Mattressman are always looking for new ways to make quality sleep more accessible. Why not spread the cost of a new bed or mattress with our finance scheme, made possible with Deko. Using finance allows you to get that dream mattress right now, without the wait. We offer a number of finance solutions, including interest free starting at a minimum order value of £300. All you need to do is add your desired items to the basket, and select the finance option in our secure checkout.

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No Headboard



is the level of support to the body, suitable for average to heavily weighted people. This is not a comfort rating.

1000 Pocket Springs

in a 5'. Each spring is encapsulated in fabric, body moulding, no roll together, quiet and perfect for side sleeping.

Fibre Fillings

fillings are 100% polyester, man made, very durable, great recovery.


Mattress Depth

28 cm

Anti Allergy

recommended, this mattress is suitable for allergy sufferers due to its fillings and fabric.

Hand Side Stitching

creates a firmer edge to the pocket mattress, a very expensive process, only for top quality mattresses.

Hand Tufted

buttons evenly over the sleeping surface, keeping the fillings together and adding a tension to the springs.


Attached to the border, aiding rotation and turning of the mattress.

Micro Quilted

A finish to the mattress created by stitching together the fabric and fillings, creating a patterned comfort quilt layer.

Rod Edge

Perimeter wire to give strength to the edge of coil sprung mattresses, a sign of quality.

One Sided

mattress, no need to turn this mattress, but rotation is recommended.

Source 2

Domestic Flamability Rated Source 2 for Low Hazard, General Domestic use

1yrs Guarantee

The manufacturer will provide a 1 year guarantee on this product against material faults & workmanship. More info

Care Leaflet

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