Flaxby Natural Cashmere Vale Super King Mattress
The Flaxby Natural Cashmere Vale Mattress is a premium pocket spring mattress in six UK sizes, which means you can match it to anything from a single bed to an emperor.
£3,299

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Flaxby Natural Cashmere Vale Mattress
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Mattress details
Mattress
Flaxby Natural Cashmere Vale Mattress
Size
Firmness
Construction
Pocket Spring
Depth (cm)
Layers
Layer Details
Key benefits
- 90cm each for two sharing: Each sleeper gets 90cm, which means a partner who fidgets or gets up early is far less likely to wake you.
- Room for a small visitor: When a child pads in after a bad dream, the 180cm width means nobody has to cling to the edge until morning.
- Space for a dog that stays: If a large dog sleeps on the bed every night rather than now and then, the extra width stops it claiming your half.
- In proportion with a large room: In a period house with high ceilings or a generous master bedroom, a 6ft x 6ft 6in mattress fills the space where a UK king can look a little lost.
- Same length as a UK king: Moving up from a UK king adds 30cm of width with no extra length, so the bed reaches no further into the room.
This size suits you if...
You share the bed every night and one of you is a restless sleeper, or children and pets regularly end up joining you. It also suits you if your bedroom comfortably clears our suggested 3m x 2.9m and you want a pocket spring mattress sized to match it.
Consider another size if...
Your bedroom falls short of our suggested 3m x 2.9m, or you mostly sleep alone. We'd recommend the UK king instead, which needs at least 2.7m x 2.9m.
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FAQ's
Will a Flaxby Natural Cashmere Vale UK super king fit in my bedroom?
We suggest a room of at least 3m x 2.9m, with around 3.5m x 3.2m feeling comfortable once bedside tables and wardrobe doors are in. In a loft conversion, measure the full-height floor area rather than the whole footprint, because the sloping ceiling usually decides which wall the bed can go against.
UK super king or UK king for a restless partner?
The UK super king is 30cm wider than the UK king and gives 15cm more each to two people sharing, at the same length. If movement from your partner is what wakes you, that distance tends to help. The UK king needs a smaller room, at least 2.7m x 2.9m in our guidance.
Is a UK super king big enough for two adults and a child?
For a child who comes in partway through the night, yes, usually. Two adults get 90cm each before anyone joins, so there is room to make a gap in the middle without someone ending up on the edge. For regular three-way sharing with an older child, it will feel snug.
What size duvet fits a Flaxby super king mattress?
Use super king sheets and a 260 x 220cm duvet. Flaxby doesn't publish a depth for this mattress, so check the pocket depth on fitted sheets before you buy, as super king bedding sets are a larger outlay and returning the wrong sheets is a nuisance.
Will a super king mattress get up my stairs?
At 180cm across, measure the tightest landing turn, the stairwell ceiling and how far each bedroom door opens before ordering. Narrow Victorian stairs and doors that open against a wall are the usual problems. Once those numbers check out, compare the retailers listed on this page for the UK super king.





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