Silentnight Middleton 800 Pocket Comfort Breathe Mattress im Test

The Silentnight Middleton 800 Pocket Comfort Breathe is a pocket sprung mattress with a medium feel, made in the UK by Silentnight and sold through Argos. Argos lists it at 26cm deep (25cm for the double), and buyers on argos.co.uk rate it 4.7 out of 5 across more than 2,600 reviews in its five sizes, as read on 5 October 2026.

How it is built

The core is a unit of 800 individually pocketed springs. Each spring sits in its own fabric pocket and moves without dragging its neighbours, which is why Silentnight claims “no roll together” for couples. The National Bed Federation’s Bed Advice UK buying guide puts typical pocket spring counts at 600-800 up to 2,500, so 800 sits at the accessible end of the pocket sprung market: independent support without the denser, firmer feel of a 2,000-spring unit.

Above the springs are layers of Eco Comfort fibre, which Silentnight makes from recycled plastic bottles, under a knitted cover with a quilted finish. There is no foam layer, so the surface stays springy and airy rather than moulding to you. It is a no-turn mattress, and the Argos product page asks you to rotate it regularly to even out wear.

Sizes and prices at Argos

These were regular Argos prices with no sale running. The mattress arrives flat and wrapped rather than rolled, which suits a divan or bed frame straight away but makes it heavier to carry up a narrow staircase.

Who it suits

Silentnight and Argos both describe the feel as medium, and Argos buyers score its firmness 3.5 out of 5 on average. That suits back sleepers and couples who want some give without sinking. Side sleepers with broad shoulders may want a softer topper, and anyone who prefers the contouring of memory foam should look at the Middleton 800 Pocket Memory, the same mattress with a foam layer on top.

The weak point is the fibre fillings rather than the springs, since fibre compacts with use, which is why the rotation advice matters. Silentnight backs it with a 5-year manufacturer’s guarantee, and Argos adds its 100-night comfort promise, an exchange for another mattress of the same size rather than a refund.