Last seen for £859.50 at Mattress Man on 10th November 2026
Silentnight Airmesh 1600 Eco Comfort King Size Mattress
The Silentnight Airmesh 1600 Eco Comfort is a pocket spring mattress with a medium firm feel, which means the springs respond to your body individually rather than moving as one unit, so you should feel less disturbance from a restless partner.
- Medium-firm feel suits most sleepers
- Helps keep your hips level
- Pocket springs hold their shape
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
More available sizes
Last seen for £859.50 at Mattress Man on 10th November 2026
Last seen for £993.65 at Mattress Man on 20th October 2026
Last seen for £715.50 at Mattress Man on 10th November 2026
Last seen for £615 at Mattress Man on 20th October 2026
Mattress details
Mattress
Silentnight Airmesh 1600 Eco Comfort Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Eco-Friendly
Depth (cm)
Layers
6
Layer Details
Coolmax cover
A soft, tactile cover made with Coolmax, which is designed to feel cool against the skin. It gives you a smooth, fresh-feeling surface to settle onto.
Comfort Breathe Fibre
A breathable fibre filling with a soft feel. It adds a little cushioning under the cover while letting air move through, so heat is less likely to build up.
1000 mini pocket springs
1,000 mini pocket springs that respond instantly to small movements through the night. This means the surface adjusts as you shift, rather than pushing back in one go.
Airmesh layer
A 3D honeycomb design that uses your body movement to push air around inside the mattress. The aim is better air circulation, which should help you stay fresher as you sleep.
600 Mirapocket springs
600 pocket springs that give deeper support and are designed to improve posture. This is the layer that helps keep your hips and spine in line.
Support pad
A supportive foundation for the layers above. You won't feel it directly, but it gives the springs a stable base to work from.
Layer details from mattressman.co.uk and silentnight.co.uk product pages, October 2026.
Key benefits
- Space for two proper sleep zones: At 75cm each for two people sharing, you can both spread out rather than negotiating the middle of the bed.
- Less disturbance on different schedules: Pocket springs respond individually, which means a partner leaving hours before you is felt less across the wider UK king surface.
- Length for taller sleepers: The UK king is 10cm longer than the UK double, a genuine relief if one of you currently sleeps with feet near the edge.
- Medium firm support across the width: A medium firm feel keeps hips level for back and stomach sleepers, and the extra width means neither of you drifts into the other's dip.
- Room for the dog too: If a pet claims a corner every night, the UK king's 15cm of extra width over a double stops that habit costing you sleep.
This size suits you if...
You share the bed every night and a double has started to feel cramped, one of you is close to six foot and wants that extra 10cm of length, or your sleep schedules rarely line up and you want the combination of pocket springs and more width to keep movement from travelling. Your bedroom can take it too: we suggest allowing at least 2.7m x 2.9m.
Consider another size if...
Your room falls short of the 2.7m x 2.9m we suggest for a UK king, or you sleep alone. In either case we'd recommend the UK double instead, allowing at least 2.6m x 2.8m for it.
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FAQ's
How much space do two people get on the Silentnight Airmesh 1600 in a UK king?
You get 75cm each for two people sharing, which is enough to change position freely without touching. Combined with the pocket spring core, where each spring compresses on its own rather than as a unit, that space means one person turning over is far less likely to wake the other.
Is a UK king Silentnight Airmesh 1600 long enough for someone over six foot?
At 200cm, or 5ft x 6ft 6in in imperial terms, the UK king is 10cm longer than the UK double, and that length is often the real reason taller sleepers upgrade. If you currently wake with your feet at the end of the mattress, this size addresses that directly.
Will a UK king fit in a new build master bedroom?
Often, but measure first. New build masters can feel smaller once wardrobes go in, and we suggest allowing at least 2.7m x 2.9m so you can walk round both sides comfortably. If your room is tighter, the UK double needs at least 2.6m x 2.8m and would suit you better.
Should we choose the UK king or the UK super king for this mattress?
The UK super king is 30cm wider than the UK king, and both are the same length, so the choice is about width and room size. We suggest at least 3m x 2.9m for the UK super king, so if your room comfortably clears that and you want maximum personal space, size up.
Where can I compare prices for the Silentnight Airmesh 1600 in a UK king?
Compare the retailers listed on this page. The prices shown here are updated as retailers change them, so what you see reflects current availability for this size rather than a snapshot that may have dated.