Millbrook Smooth Tech Luxury 4000 Pocket Mattress Rated 4.5/5 based on 2 customer reviews
Millbrook Smooth Tech Luxury 4000 Pocket Mattress

Millbrook Smooth Tech Luxury 4000 Pocket Mattress

pocket spring mattresses sleep trial mattress Medium Firm mattresses
sleeping cat
32p per sleep based on average mattress lifespan
Small Double
King Size
Super King
With Divan Bed Set
With Ottoman Bed Set
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Tests & Verdict

Here we collect tests, guides and product reviews so that you can create a picture of what others think about the product. This analysis and review is based on my experience and 12+ years of industry insight.

Premium materials applied in lavish quantities makes for a fantastic option for those who can afford it.

Fantastic brand that gives more in this product than competitors at the top of this space.

A great base layer paired with a great top layer leaves nothing on the table for those who want the best.

Price point may alienate those looking for a good, but cheap nights sleep.

Single mattress seems at-odds with the pricing of the rest of the lineup which is far more reasonable by comparison.

Read why our sleep experts loved it ›

Who is it best for? powered by SnoozeScore

In our experience, the materials and construction that go into this product can make it suitable for the following people.

Back sleeping and stomach sleeper, occassional side sleeper icon
For combination sleepers
Great for back and stomach, okay for side.
Reduced partner disturbance icon
Reduced partner disturbance
Pocket springs work independently to one another.
Roll together prevention
Roll together prevention
Independent springs help prevent roll together.
Acid reflux icon
Helps with acid reflux
When paired with a compatible adjustable bed.
Toss and turn icon
Good for those who toss and turn
Materials like memory foam can restrict movement.

Still not sure if the Millbrook Smooth Tech Luxury 4000 Pocket Mattress is suitable for you? Answer 4 simple questions with our quiz.

Take Suitability Quiz

Why our sleep experts loved it

What does a Millbrook Smooth Tech Luxury 4000 Pocket Mattress have in common with the likes of Tempur, Dunlopillo and Hypnos? Normally not a huge amount, Millbrook is renowned for their mid-market offerings and have generally stuck toward this arena for a number of years. Not so with this Luxury 4000 mattress however where the product sees itself in the enviable position of being able to go head to head with some of the most luxurious and prestigious offerings from premium brands. Let's dive into what makes this one particularly special.

Starting with that support layer that typically sits at the base of the product and this is where you start to appreciate that something quite special is within reach. The base layer has pocket springs, which we already love and rate particularly highly, but this time in a 4000 spring setup. Now, depending on who you speak to, there is a theoretical limit of around 2500 springs before those that follow offer any benefit, however, the springs in this instance are tripped up and combine full length springs with micro-pocket springs. The result is full body contouring that adjusts and adapts to your each and every move. Roll together is a thing of the past, roll off edge protection is as strong as we've seen and the layer ultimately just does a great job of providing support which is exactly what it is supposed to be doing.

Available in a medium to firm tension this product will prove popular with those looking for enhanced back and neck support and primarily suit back and stomach sleepers, although there is room for side sleepers thanks to the less-than-firm tension.

Onto the comfort layer and the Smooth Tech Luxury 4000 Pocket packs deep and luxurious layers of wool into the top of the mattress to protect you from the springs underneath. This is great because not only is wool environmentally friendly, it is also both supremely comfortable and also very breathable. The result, when paired with equally breathable pocket springs and a good slatted base, is a mattress that breaths and allows significant air circulation to occur while you sleep. This, in turn, creates a cooler and more refreshing nights sleep where you will not get too hot, nor too cold, proving to be a perfect all-season mattress.

Long term reviews will be absent for a while yet and while we see great value in this type of premium mattress, we do begrudge that the price point may still alienate those lured in by lower prices in the industry. As a result, we don't expect the Millbrook Smooth Tech Luxury 4000 Pocket Mattress to be a bestseller overnight, and that's a shame as the quality of materials combined with fantastic 60 night sleep trial all pair beautifully with the 10 year guarantee to bring home a truly great night of sleep that your body will thank you for. 

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How does it feel?

Personalised feel depends on bodyweight. Adjust your weight below to get an indication of how the Millbrook Smooth Tech Luxury 4000 Pocket Mattress may feel.

weight description image
Quantitative Measurements KPI question mark
Of The Millbrook Smooth Tech Luxury 4000 Pocket Mattress
Here's how the product performs based on the materials and composition when compared to other products of similar price point. These measurements are produced using a combination of specification-heavy algorithmic data points and our own hands on experience.

Quantitative Measurements KPI question mark

Here's how the product performs based on the materials and composition when compared to other products of similar price point. These measurements are produced using a combination of specification-heavy algorithmic data points and our own hands on experience.


*Assuming average weight, suitability will vary dependant on body type, use the quiz above for a more tailored guide.
  • Back Sleepers
  • The amount of support offered from a mattress will vary depending on the firmness of the tension and the type of support layer used. Based on a person of average build.
  • Side Sleepers
  • If you sleep on your side you typically need a supportive tension that is not too firm, nor too soft. This is because your hips and shoulders need adequate sinkage.
  • Stomach Sleepers
  • Stomach sleepers need a reasonable amount of tension in the base support layer to adequately offer body contouring and help prevent aches and pains. Results will vary based on your build.


  • Breathability
  • Mattresses that feature breathable materials help promote airflow and keep you cool making for a more hygienic night's sleep.
  • Turning on mattress
  • Certain materials like memory foam can make it difficult to move about on the mattress while you toss and turn. Same too for pillow tops which can create a cloud like sensation which can make manoeuvrability challenging.
  • Stability
  • Depending on the type of support layer in place can have an impact on stability, edge to edge support and roll together prevention. Pocket springs of a firmer tension will have better stability than open coil soft tension, for example.

Ease of Use

  • Turning handles
  • Mattresses typically need to be rotated frequently and having turning handles can be massively beneficial, particularly in larger sizes which can become fairly heavy.


  • Initial Odour
  • Materials in mattresses, particularly memory foam and rolled bed-in-a-box mattresses can have an initial odour, this is typically short term and reduces considerably within 24 hours.
  • Long Standing Odour
  • Certain materials inside different mattresses can produce a small odour. Typically this is short term rather than long standing but there are minor exceptions.

Brand Rating

  • Overall Brand Rating
  • This is based on community driven customer reviews tied to product reviews and grouped together at a brand level to produce a score.


Let us know your thoughts on a product or view reviews from others. Please note that WantMattress does not verify whether the user has used or purchased the product.

4.5 - 2 reviews

Image of the post author
Verified Buyer
via Mattress Online
The mattress is beautifully made and the materials used are excellent.
Image of the post author
Verified Buyer
via Mattress Online
Very comfortable, no problems at all. Thank you
Of The Millbrook Smooth Tech Luxury 4000 Pocket Mattress
Brand: Millbrook Beds
Retailer: Mattress Online
Delivery Time: Excellent
Delivery Charge: Excellent
Customer Sentiment: Good
Guarantee: Excellent

Calendar Icon Radar Analysis Radar Analysis Question Mark

Radar Analysis looks at the product, brand and retailer against base norms established within the industry and determines where the product sits by way of established performance metrics.

Product Relevant Videos

Hand picked video that relates to the specifications of The Millbrook Smooth Tech Luxury 4000 Pocket Mattress

What are Pocket Springs?
What are Pocket Springs?
By BedStar
Mattress Online
Mattress Online
By Mattress Online
Millbrook Beds
Millbrook Beds
By Millbrook Beds
Choosing Mattress Firmness
Choosing Mattress Firmness

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How we reviewed this product

At WantMattress, we adhere to stringent sourcing standards, drawing from peer-reviewed research, scholarly institutions, medical associations, and firsthand accounts and experience. We refrain from using tertiary sources. To understand how we maintain the accuracy and up-to-date nature of our content, please read further about how we test.

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