Silentnight Eco Comfort Breathe 1400 Pocket Pillow Top Super King Mattress
The Silentnight Eco Comfort Breathe 1400 Pocket Pillow Top Mattress combines 1400 zoned Mirapocket springs with breathable fibre layers, which means firm support for your back and hips with air able to move through it.
- Zoned support for back & hips
- Breathable layers help you sleep cooler
- Pillow top made from recycled fibres
£774
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Silentnight Eco Comfort Breathe 1400 Pocket Pillow Top Mattress
More available sizes
Mattress details
Mattress
Silentnight Eco Comfort Breathe 1400 Pocket Pillow Top Mattress
Size
Firmness
Firm
Construction
Eco-Friendly
Pocket Spring
Depth (cm)
26
Layers
3
Layer Details
Pillow top with Eco Comfort Fibre
A tufted pillow top filled with hypoallergenic Eco Comfort Fibres made from recycled plastic bottles. It adds cushioning to the surface of a firm mattress.
Eco Breathe Fibres layer
A second fibre layer that lets air and moisture pass freely through the mattress. This helps it stay fresher and cooler as you sleep.
Mirapocket pocket springs
1400 individual Mirapocket springs, zoned to support your back and hips, under a Coolmax knitted cover. They give the firm, supportive base of the mattress.
Layer details from thesleepshop.co.uk product page, October 2026.
Key benefits
- A full 90cm each: Two people sharing get 90cm each, so a restless partner's turning happens further from you while the zoned springs keep your own back and hips supported.
- Space for a small visitor: When a child or a large dog joins you most nights, the 6ft width gives everyone a share of the bed without the adults clinging to the edges.
- A clear step up from a double: Compared with a UK double, the UK super king gives 22.5cm more each and is 10cm longer, a difference you notice the first time someone rolls over.
- Firm for couples who both like it firm: The tufted pillow top adds a little cushioning over firm Mirapocket springs, which suits couples where neither of you wants a deep sink.
- Suits a large master bedroom: In a period property or a generous master bedroom, a UK super king fills the space in proportion where a smaller bed can look a little lost.
This size suits you if...
You share with a partner who moves a lot in the night, or children and a large dog regularly end up in your bed, and you both want firm support with a little cushioning on top, in a bedroom of at least 3m x 2.9m.
Consider another size if...
You sleep alone, or your bedroom is smaller than our suggested 3m x 2.9m. In that case we'd recommend the UK single instead, which needs a room of at least 2.1m x 2.8m.
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FAQ's
What size bedroom do I need for a Silentnight Eco Comfort Breathe 1400 super king?
We suggest at least 3m x 2.9m, with around 3.5m x 3.2m feeling more comfortable once you add bedside tables and room to walk round. In a loft conversion, the sloping ceiling usually decides which wall the headboard goes against, so measure the full-height floor area rather than the whole room.
Is a super king big enough for two adults and a child?
For a child who climbs in now and then, usually yes. Two adults get 90cm each in a UK super king, so a small child can fit between you without anyone being pushed to the edge. If it happens every night and the child is growing, it will feel busier, but no standard UK size gives you more width.
Will a super king pillow top mattress fit up my stairs?
Silentnight lists this mattress as no roll-together, so check the brand's own guidance on how it arrives. In a UK super king it measures 180 x 200cm and 26cm deep, so measure the door swing at the top of the stairs and any tight landing turns, then compare the retailers listed on this page.
What size duvet and sheets fit a super king mattress?
You need super king sheets and a 260 x 220cm duvet. This mattress is 26cm deep with a pillow top, so check that a fitted sheet's pocket depth covers it before you buy, as a shallow sheet can pull at the corners.
How much more room does a super king give than a king?
A UK super king is 30cm wider than a UK king and the same length, which works out at 15cm more each for two sharing. Silentnight doesn't make this mattress in a UK king, so for couples the UK super king is the only option in this model.