Millbrook Allure Firm Pocket 2500 Small Double Mattress
The Millbrook Allure Firm Pocket 2500 is a pocket sprung mattress from Millbrook whose springs move independently, which means less disturbance when a partner shifts in the night.
- Pocket-sprung support
- From an established British maker
- Includes Small Single & Small Double
£577.02
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Millbrook Allure Firm Pocket 2500 Mattress
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Mattress details
Mattress
Millbrook Allure Firm Pocket 2500 Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Depth (cm)
Layers
2
Layer Details
Confonomic micro springs
A top layer of 1500 Confonomic micro springs sits above the main springs. Being the layer closest to you, it adds a finer level of give on the surface, though the firm feel of the mattress overall still comes through.
ErgoZone7 pocket springs
The base layer is 1000 ErgoZone7 pocket springs, arranged in a 7-zone system. Each zone is meant to give different support across your body, so your shoulders, hips and legs aren't all held in the same way.
Layer details from archerssleepcentre.co.uk product page, October 2026.
Key benefits
- Real width for one: At 120cm wide, a solo sleeper can turn over, starfish or shift position without meeting the edge, something a UK single rarely allows an adult.
- Fits rooms a double cannot: The UK small double is 15cm narrower than a UK double, which can be the difference between a door that clears and one that doesn't.
- Firm pocket springs suit solo firm sleepers: The 2500 pocket springs compress independently, so a firmer feel comes without the whole-surface stiffness of an open coil mattress.
- Copes with occasional couple use: Two people can share for a weekend visit, making this a sensible guest room pick where nobody sleeps in it nightly.
- Standard 4ft bedding: Small double is a recognised UK size, so fitted sheets, frames and protectors are easy to find, and a standard double duvet works fine.
This size suits you if...
You sleep alone, you've outgrown a UK single, but your room is a box room, loft conversion or small second bedroom that can't give up the floor space a UK double demands. It also fits if you're furnishing a guest room for occasional visitors, or a holiday let bedroom, and you specifically want a firmer feel rather than a soft, sinking one.
Consider another size if...
You share the bed every night, in which case 120cm is a squeeze long term. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; allow at least 2.6m x 2.8m of floor space.
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FAQ's
Is a UK small double big enough for one adult to spread out on?
Yes, comfortably. The UK small double is 30cm wider than a UK single at the same 190cm length, which is enough for an adult to change position freely through the night. On the Allure Firm Pocket 2500 the springs move independently, so you feel support where you lie rather than a rigid, board-like surface.
Can a couple share the Millbrook Allure Firm Pocket 2500 in a small double?
For the odd night, yes, which is why it suits guest rooms and holiday lets. For every night, 120cm across two people is tight, and the firmer feel means you won't roll towards each other but you will notice the lack of width. Nightly sharers should look at the UK double, which gives 67.5cm each.
What room size do I need for a small double mattress?
We suggest allowing at least 2.4m x 2.8m for a UK small double, which leaves room to walk around the bed and open drawers. That's our own guidance rather than Millbrook's. If your room is a loft conversion, check standing height along the sides too; the narrower 4ft footprint often sits better under a sloped ceiling.
How does the UK small double compare with the UK king?
The UK small double is 30cm narrower and 10cm shorter than the UK king. The UK king gives 75cm each for two sharing, so it's the better everyday choice for couples with the space, and we suggest at least 2.7m x 2.9m of floor for it. The UK small double is aimed at solo sleepers and compact rooms.
Is the small double a good guest room size for this mattress?
It's one of the better ones. A guest room usually hosts one person, occasionally two, and the 4ft width handles both without swallowing the room. The firm pocket sprung feel divides opinion less for short stays than nightly use, and 4ft bedding is easy to buy. Compare the retailers listed on this page for current pricing.