Millbrook Wool Sublime Pocket 4000 Single Mattress
Millbrook

Millbrook Wool Sublime Pocket 4000 Single Mattress

The Millbrook Wool Sublime Pocket 4000 Mattress combines natural wool, silk and cotton fillings over pocket springs with a hand-tufted finish, which means a medium-to-firm feel that's built to be flipped and rotated.

  • Natural wool, silk & cotton fillings
  • Flip & rotate to even out wear
  • Hand-tufted for lasting shape

£431.82

Size: Single. Available at Archers Sleepcentre

Best priced retailer
Get the lowest price we've found
Buy at Archers Sleepcentre
We may earn a commission.

Save with the previous model

Some retailers still sell the earlier version of this mattress for less than the current model's best price.

Where can I buy the Millbrook Wool Sublime Pocket 4000 Single Mattress?

Below are the best prices for the Millbrook Wool Sublime Pocket 4000 Mattress in a Single. Available from (9) trusted retailers.

Millbrook Wool Sublime Pocket 4000 Mattress

Cheapest
Retailer
Was price
£1999.00
Save £250
Get deal
Prices last checked:
6th November 2026

Mattress dimensions for the Millbrook Wool Sublime Pocket 4000 Single Mattress

Length: 190cm

Width: 90cm

(3ft x 6ft 3in)

Minimum room size: 2.1m x 2.8m

Mattress details

Mattress Details for the Millbrook Wool Sublime Pocket 4000 Single Mattress

Mattress

Millbrook Wool Sublime Pocket 4000 Mattress

Size

UK Single (3ft x 6ft 3in)

Firmness

Medium Firm

Construction

  • Natural

  • Pocket Spring

  • Wool

Depth (cm)

31

Layers

Layer Details

Key benefits

Key Benefits of the Millbrook Wool Sublime Pocket 4000 Single Mattress

  • Fits a crowded small room: At 3ft x 6ft 3in, the UK single leaves space beside the bed for a wardrobe, a desk or a toy box in a compact bedroom.
  • Workable in a loft room: A narrow footprint means you can tuck the bed under a sloping ceiling in a loft conversion, where a wider mattress would push into the low side.
  • Room for two singles: In a guest room or a shared children's room, two UK single beds with a walkway between them often fit where one larger bed would.
  • Easier to flip on your own: The mattress is double-sided, and turning a UK single is a far more manageable job for one person than turning a king or super king.
  • Breathable for one: Natural fillings and built-in air vents help heat escape, which suits a teenager or solo adult who tends to warm up overnight.

Who should buy the Millbrook Wool Sublime Pocket 4000 Single Mattress?

This size suits you if...

You sleep alone and want a natural-filled, medium-firm mattress, or you're furnishing a child's or teenager's room where the bed has to share space with a desk and storage. It also suits a spare room that doubles as a study, where guests stay occasionally.

Consider another size if...

You share the bed most nights, or you want more room to spread out on your own. We'd recommend the UK small double instead, which is 30cm wider than the UK single; allow at least 2.4m x 2.8m for it.

FAQ's

Frequently Asked Questions About the UK Single

Will the Millbrook Wool Sublime Pocket 4000 single fit a bunk bed?

Possibly, but check before you buy. The mattress is 31cm deep, which is substantial, and bunk, cabin and mid-sleeper frames usually set a maximum mattress depth so the guard rail stays high enough. Compare the frame maker's limit with that 31cm figure. If it falls short, a standard-height divan or bed frame is the safer home for this mattress.

What size room do I need for a single Millbrook Wool Sublime Pocket 4000?

We suggest allowing at least 2.1m x 2.8m of floor space for a UK single. That leaves room to get in and out comfortably and to open drawers or a wardrobe nearby. If you're placing two UK singles side by side in a guest or shared room, measure for both beds plus a clear walkway between them.

What are the Millbrook Wool Sublime Pocket 4000 single dimensions in feet?

The UK single measures 3ft x 6ft 3in, which is 90 x 190cm. It's 31cm deep. Measure your existing frame or bed base against those figures, since an older or imported frame may not match standard UK single sizing exactly.

Is a UK single big enough for an adult?

For one adult of average height, yes. It's the standard UK one-person size and shares its length with the UK small double and UK double. Taller adults should know the UK single is 10cm shorter than the UK king. If your feet already reach the end of your current bed, a longer size will feel more comfortable.

Will this mattress suit a child in a UK single?

It can, with one caveat. The medium-firm feel gives steady support, which suits children who sleep on their back or move around. Lighter sleepers who lie on their side may find it a little firm, though, and most children are lighter than adults. If your child sleeps curled up on their side, weigh that before choosing.