Millbrook Wool Ortho 1000 Pillow Top Small Double Mattress
The Millbrook Wool Ortho 1000 Pillow Top Mattress pairs 1000 pocket springs with a Hampshire wool and English spun cotton comfort layer, which means firm support with a softer, natural-fibre feel on the surface.
- Firm support with a cushioned top
- Natural wool & cotton comfort layer
- Reinforced edge for steadier sides
£468
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
Millbrook Wool Ortho 1000 Pillow Top Mattress
More available sizes
Mattress details
Mattress
Millbrook Wool Ortho 1000 Pillow Top Mattress
Size
Firmness
Firm
Construction
Orthopaedic
Pocket Spring
Wool
Depth (cm)
29
Layers
3
Layer Details
Pillow top
An extra layer of comfort on the surface for a more cushioned feel. It softens the first impression of the mattress without changing its firm rating.
Comfort layer
A soft blend of Hampshire wool and English spun cotton. These natural fibres add cushioning between you and the springs.
Sprung core
1000 individually pocketed springs, each encased in a cloth pocket. This gives the firm support the mattress is rated for.
Layer details from mattressonline.co.uk product page, October 2026.
Key benefits
- Space to spread out alone: The extra 30cm over a UK single gives you room to sleep across the bed or shift position, and the firm surface keeps that space feeling even.
- Clears tighter doorways and walkways: It's 15cm narrower than a UK double, which can decide whether a bedroom door swings fully open or catches the corner of the frame.
- Suits rooms under a sloping ceiling: In a loft conversion, the narrower footprint lets you tuck one side under the slope and still keep standing room along the other.
- Steadier edges on a narrower bed: The double metal rod border keeps the sides firm, which helps on a UK small double where you'll sit and sleep near the edge more often.
- Plan for the deep pillow top: At 29cm deep, it sits taller than many mattresses, so check your frame height and choose fitted sheets with enough pocket depth.
This size suits you if...
You sleep alone and want more room than a UK single gives you, your bedroom can't comfortably take a UK double, or the bed is mostly yours with a partner or guest staying now and then.
Consider another size if...
You share the bed every night, because two adults on a firm 120cm surface will feel cramped. We'd recommend the UK double instead, and we suggest at least 2.6m x 2.8m for it.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
Is the Millbrook Wool Ortho 1000 Pillow Top small double big enough for two?
For occasional stays, yes. A guest couple can manage a weekend on it. For nightly sharing, it's tight. The UK double is 15cm wider and gives 67.5cm each for two sharing, so we'd recommend that if you share every night.
What size bedroom do I need for a UK small double Millbrook Ortho 1000?
We suggest at least 2.4m x 2.8m for a UK small double. That's our own guidance, and it leaves room to walk around the bed and open a wardrobe. If your room is smaller still, the UK single needs at least 2.1m x 2.8m by our suggestion.
Will a UK small double fit in a loft conversion bedroom?
Often, yes. At 120cm wide, you can push one side under the slope and keep headroom on the other. Remember the mattress is 29cm deep, so add that to your frame height when you measure clearance under the lowest part of the ceiling.
What fitted sheets fit a 29cm deep small double mattress?
Look for 4ft fitted sheets, and check that the pocket depth printed on the packet covers at least 29cm. Shallow sheets tend to ping off the corners of a pillow top. A standard double duvet works on top.
Should my teenager move from a single to a small double?
If they've outgrown the width of a single, a UK small double adds 30cm without adding length, so it fits the same wall run. Bear in mind Millbrook rates this mattress firm, so a teenager who sleeps on their side and likes to sink in may find it too firm.