Sealy Posturetech Superior Mattress Rated 2.76/5 based on 16 customer reviews
Sealy Posturetech Superior Mattress helps with

Sealy Posturetech Superior Mattress

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2.8/5 - Read 16 Reviews
Single3' x 6'3
Small Double4' x 6'3
Double4'3 x 6'3
King Size5'0 x 6'6
Super King6'0 x 6'6
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becky says

The Sealy Posturetech Superior Mattress is one of the latest in the Sealy range exclusive to Dreams. It has zonal support thanks to it's traditional spring support system, this helps ensure that the spine remains aligned due to the "push back" nature of the firm traditional layer.

This mattress also features what Sealy have dubbed, an Edge Guard, this is just fancy edge to edge support that gives you full usage of the entire spread of the mattress without fear of dips of divots as you navigate your sleep throughout the night,

When it comes to the comfort layer, this comes in the form of the latex filling, a resilient and body moulding layer that is both natural and possessing many of the positive points of memory foam with little of the downsides. 

Finally the mattress comes with a luxurious pillow top to further aid comfort above the latex layer. This utilises Sealy Smart Fibres that have been endorsed by Allergy UK to reduce the allergens in the bedroom, working hand in hand with the other layers to produce a comfy, safe and luxurious mattress for all.

How does it feel?

Firmness of The Sealy Posturetech Superior Mattress depends on bodyweight. Adjust your weight below to get an indication of how it may feel. Remember though that firmness is entirely subjective.
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Key Performance Indicators KPI question mark
Of The Sealy Posturetech Superior Mattress
Our Key Performance Indicators are produced using a combination of specification-heavy algoritmic data points and user reviews.

Key Performance Indicators KPI question mark

Our Key Performance Indicators are produced using a combination of specification-heavy algoritmic data points and user reviews. For example, a firm pocket spring support layer is more breathable and offers better back support but may prove unsuitable for side sleepers, the reverse is true for a soft-medium tension reflex foam support layer. This is one of 100+ datapoints considered when generating the below ratings.


*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.


  • 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.

Customer Photo Submissions

Take a better look at how the Sealy Posturetech Superior Mattress will look in your room

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Of The Sealy Posturetech Superior Mattress
Brand: Sealy
Retailer: Dreams
Delivery Time: Average
Delivery Charge: Excellent
Customer Sentiment: Average

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.

What Makes The Sealy Posturetech Superior Mattress Great?

Posturetech spring mattress

Exclusively to Sealy, the posturetech range offers enhanced comfort and support using their patented spring system

Sumptuous pillow top

With a pillow top, this mattress effectively comes with it's own built-in protector. That's all a pillow top really is, an additional top layer of comfort which makes all the difference when it comes to getting that good nights sleep. We quite like pillow tops, they have their place in the industry. 

Latex fillings

Latex is a luxurious material of natural origins and is one of the better materials for mattress construction due to it's softness, breathability and resilience. You will find latex often used as a top comfort layer and occasionally used as a core/base layer due to it's additional supportive properties.

Comfort Grade - Medium

A Medium firmness mattress is the most common build offered due to the range of suitability offered in such a mattress. This type of mattress will be better suited toward averagely weighted people, while lighter people should opt for a medium-light, and heavier people considering a medium-firm.

Smart Fibres

The smart fibre comfort layers sit at the top of the mattress above the springs or reflex foam (depending on model) and offer a breathable layer to help regulate temperature throughout the product and keep you cool while you sleep.

Rotate Regularly - Rotate head to toe weekly for the first three months, then every month thereafter

Your mattress should be rotated on a regular basis as this is the easiest way to prolong and increase the longevity of your mattress. The main benefits to regularly rotating your mattress is the continued support and comfort while reducing any risk of sagging that may otherwise occur

Sealy Care Guide

An easy-care guide will provide a walkthrough for keeping mattresses clean and dry. Provide instruction on rotating and/of flipping if necessary. Keeping furniture stable and safe where required.

About Sealy

Sealy has divisions across the world with renowned manufacturing within the high-end bed and mattress segment for over 100 years. For the UK division of Sealy, the mattress factory is inset within the heart of Cumbria which makes an impressive 3500 mattresses per week.

Latex layer

Latex is a luxurious material of natural origins and is one of the better materials for mattress construction due to it's softness, breathability and resilience. You will find latex often used as a top comfort layer and occasionally used as a core/base layer due to it's additional supportive properties.

Luxurious soft knit fabric

There is nothing worse than an uncomfortable night’s sleep where you toss and turn all night, wake up tired, and feel like you have to drag yourself through the day. The solution -  sleeping on a soft knit fabric mattress cover can help you get a restful nights sleep due to their extreme softness combined moderate stretch.

Pillow Top

Many mattresses that you see that look really plush, do so because they feature a pillow top. Benefits of a pillow top mattress are increased comfort and luxury styling. Downsides are they can be a bit of a pain to get sheets over properly


This product is unlikely to cause any sort of allergic reaction. Ideal if you suffer from any sort of allergy problems

Made in the UK

These are made and manufactured in the UK, meaning that they all meet the same exceptional quality and durability that we expect from genuine UK manufacturing.

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Customer Reviews For The Sealy Posturetech Superior Mattress

Based on 16 reviews
So good we reordered!

We bought this mattress about 2 weeks ago and already we are bedded (!) in and so pleased with our purchase. We actually bought this mattress in super king size 3 years ago but due to moving house we have had to replace our bed with a king size instead and had no hesitation in ordering the same mattress as its just sooo comfy. We ordered a sealy mattress as after staying in a hotel and sleeping on a sealy mattress we just had to! Great buy.. great value and a great kip! Will probably order again if they are still making them in a few years!

Don't go for the Mattress protector option

We got this bed about 3 weeks ago. The first 2 weeks, the bed was too hot, and rustled every time you moved. We realised the plastic mattress protector we were given for the extra warranty was the problem; a cheap plastic sheet that didn't fit the bed properly, and was like the one's you give to 2 year olds in case they wet the bed!!! We have changed this now, I guess this will invalidate the warranty, but the bed is great now. We took the Super King Size with Ottoman option which is really useful.

Bouncy and hot

We bought this a month ago but have struggled to get on with its bouncy, springy firm mattress. I can feel my husbands every move and the latex topper can be too hot . I'm looking forward to changing this to a natural material bed which doesn't hurt my joints. Husband loves it as it strangely keeps him cool and is firm enough for his weight. Real shame as I could do without the hassle!

Perfect nights sleep

This mattress is incredibly comfortable. It doesnt sink like other mattresses and has exactly the right amount of firmness to support the body without feeling like a board.

Brilliant service and products

We recently bought 3 beds and a mattress and we are very pleased with them. We have had lots of good comments about out new beds.


Very pleased with my new Mattress/Bed. It is so comfortable and seems to keep you at a good body temperature. Highly recommend.

Super comfy!!

Ive had this mattress about 5 weeks, and I love it, it really is so comfy! Impressed

Quality, comfort, support & durability

The mattress to me seemed to have everything I wanted and I wasnt disappointed

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Questions and Answers About The Sealy Posturetech Superior Mattress

Prospective customers had the following questions about the product

Do you take away the old mattress?

Answer: We take away old mattresses at an additional charge. This service can be added to your order upon checkout, or asked for in store.Thank you for your question.

Is this mattress the one that received Best Buy for Which?

Answer: This is a new and exclusive new sealy mattress. This will not have received this.Many thanks for the question.

What is the guarantee please.

Answer: This will be a one years warranty and a eight year guarantee option through checkout.Many thanks for the question.

Hi how many springs does this mattress have thanks

Answer: Mattress is made up of the Core support system which consists of 620 springs.Many thanks for the question.

Can this mattress be turned over, not just rotated, and if so does the topper come away with a zip for example to be replaced on the other side?

Answer: This can only be rotated as the topper is not detachable.Many thanks for the question.

How many springs are there in total in this mattress?

Answer: There are 660 springs in this mattress.Thank you for your question.

Is this delivered rolled?

Answer: This will be delivered as seen.Many thanks for the question.

What is the depth of this mattress?

Answer: This will be 34cm.Many thanks for the question.

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