Rest Assured Northington 2000 Pocket Natural Single 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
£389
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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
- Leaves floor space free: We suggest allowing at least 2.1m x 2.8m for a UK single, which means a wardrobe and desk can still share a child's or teenager's bedroom.
- Firm support for one: The firm pocket spring core gives a single back or front sleeper a level, steady surface, with a softer silk top so the first feel is gentle.
- Cooler for guests: The British wool layer helps regulate temperature, so visitors in a warm spare room or loft conversion are less likely to wake up overheated.
- Reassuring for younger sleepers: It carries an Allergy UK Seal of Approval, which offers some peace of mind if you're buying for a child's bedroom.
This size suits you if...
You're buying for a teenager or single adult who sleeps on their back or front and likes a genuinely firm feel, or you're furnishing a small bedroom or spare room where floor space matters more than width.
Consider another size if...
You share the bed with a partner or sprawl and want more room. We'd recommend the UK double instead: it is 45cm wider, gives 67.5cm each for two sharing, and we suggest at least 2.6m x 2.8m.
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FAQ's
Will the Northington 2000 UK single fit a bunk bed or mid sleeper?
Possibly, but check first. This mattress is 30.5cm deep, and raised frames usually specify a maximum mattress depth so the guard rail stays high enough to be safe. Rest Assured doesn't publish guidance for bunk or cabin beds, so go by your frame manufacturer's limit before buying.
Is the Northington 2000 single too firm for a child?
It may be for some. It's a firm mattress, and lighter children who sleep on their side can feel pressure at the shoulders and hips. Older children and teenagers who sleep on their back or front are more likely to get on with it, and the silk and cashmere top softens the surface a little.
What size room do I need for a UK single Northington 2000?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single. That gives room to get in and out comfortably and still fit storage, which is usually the pressure point in a child's bedroom or a spare room that also serves as an office.
Is a UK single Northington 2000 long enough for a tall teenager?
The UK single is 190cm long. If your teenager is already close to that height, they may find their feet near the edge. The UK king is 10cm longer, although it is also 60cm wider, so it only makes sense in a much bigger room.
Should I get the Northington 2000 in a UK single or UK double for a teenager?
A UK single suits most teenagers sleeping alone and leaves more floor space. The UK double is the same length but 45cm wider, which helps restless sleepers, and we suggest at least 2.6m x 2.8m for it. You can compare current prices for both sizes on the retailer listings.