Rest Assured Northington 2000 Pocket Natural King Size Mattress
The Rest Assured Northington 2000 Pocket Natural Mattress is a firm pocket spring mattress with a run of natural fillings: silk, cashmere and traceable British wool sit over 2,000 pocket springs, which means each spring moves independently and responds to your body rather than the whole bed shifting when your partner does.
- British wool helps you sleep cooler
- Silk & cashmere soften the firm feel
- Allergy UK Seal of Approval
£579
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Rest Assured Northington 2000 Pocket Natural Mattress
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Mattress details
Mattress
Rest Assured Northington 2000 Pocket Natural Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Wool
Depth (cm)
31
Layers
4
Layer Details
Silk
A light, soft top comfort layer, which means the first thing you feel is gentle rather than the firm springs beneath. It adds a touch of luxury without changing the overall firm support.
Cashmere
A rare filling that's softer and finer than wool, typically reserved for higher quality mattresses. It sits just under the silk to cushion the sleeping surface.
Authentic Traceable British Wool
Wool from British Cheviot sheep, fully traceable from farm to shop, with a naturally strong yet soft fleece. It gives a natural bounce and helps regulate your temperature, so you're less likely to overheat.
2000 Pocket Springs
Each spring is sewn into its own fabric pocket, which means they work independently and contour to your body for better pressure relief. This also limits motion transfer, useful if you share the bed.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- More room each: At 75cm each for two people sharing, the UK king gives you 7.5cm more personal space than the UK double, which means fewer elbows and stolen inches overnight.
- Length for taller partners: The UK king runs to 200cm long, 10cm more than a UK double, so a partner approaching six foot is far less likely to have feet over the end.
- Calmer early starts: The independent pocket springs, spread across a wider UK king surface, mean an early riser can slip out with less of the movement reaching whoever is still asleep.
- Cooler for two: Two people make a lot of heat, and the traceable British wool layer helps regulate temperature across the UK king, which suits a couple where one partner runs hot.
- Measure before you buy: We suggest allowing at least 2.7m x 2.9m for a UK king, so measure a new build bedroom after fitted wardrobes are in, since they take more space than expected.
This size suits you if...
You share the bed every night and wake when your partner turns over, or one of you is close to six foot and has simply run out of length on a UK double. It also suits couples on different schedules who want a little more distance between them when one gets up hours earlier.
Consider another size if...
Your bedroom falls short of our suggested 2.7m x 2.9m once furniture is in. We'd recommend the UK double instead, for which we suggest at least 2.6m x 2.8m.
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FAQ's
Is the Northington 2000 UK king good for couples who disturb each other?
It should help on two fronts. The 2,000 pocket springs move independently, so a partner's turning stays largely on their side, and the UK king gives you 75cm each for two people sharing. That extra distance means you are less likely to feel an early riser or a restless sleeper beside you.
Is a UK king Northington 2000 long enough if you're over six foot?
The UK king is 200cm long, which is 6ft 6in, and 10cm longer than a UK double. For a partner approaching or just over six foot, that extra length is often the real reason to upgrade, because it gives room for your feet without hanging off the end or curling up.
Northington 2000 king or super king for two people?
The UK super king gives 90cm each for two sharing, 15cm more each than the UK king, and the two sizes are the same length. It needs more floor space though: we suggest at least 3m x 2.9m for the UK super king, against 2.7m x 2.9m for the UK king.
How much more space does the Northington 2000 king give than the double?
The UK king is 15cm wider and 10cm longer than the UK double. Shared between two, that works out as 7.5cm more each, with the UK double offering 67.5cm per person and the UK king 75cm. It sounds small on paper, but it is the difference most couples notice first.
Will a Northington 2000 UK king fit in a new build master bedroom?
Possibly, but measure carefully. We suggest at least 2.7m x 2.9m for a UK king, and new build master bedrooms often feel roomier on the plan than they do once fitted wardrobes are in. Check you still have space to walk around the bed and open doors before ordering.