Rock Hard Mega Firm 1500 Pocket Mattress

Rock Hard Mega Firm 1500 Pocket Mattress

sleeping cat
10p 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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Pros & Cons

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 a decade of industry insight.

You don't find many very firm mattresses at this price point, giving these benefits to a different segment of user.

Trusted brand/retailer with positive reviews despite being such a new product.

All popular sizes available for fast delivery.

Unsuitable for most people.

Still a new mattress with no long term reviews, although the composition can be trusted.

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 icon
For back and stomach sleepers
Additional support helps these positions
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.
snooze score logo Still not sure if the Rock Hard Mega Firm 1500 Pocket Mattress is suitable for you? Answer 4 simple questions with our quiz Take Suitability Quiz

Why our sleep experts loved it

Today, I'm diving into the world of ultra-firm mattresses with the Rock Hard Mega Firm 1500 Pocket Mattress from Mattress Online. Now, I know what you're thinking: "Rock Hard? Really?" But trust me, this mattress lives up to its name, and I'm here to share all the nitty-gritty details with you.

Who it will suit / Who I recommend it for

For those who've been on the hunt for a mattress that offers an orthopaedic feel and full-body support, this might just be your match made in heaven. With 1500 pocket springs, it promises to contour and support every inch of your body. Further to this, if you're eco-conscious, you'll be pleased to know that this mattress is fully recyclable at the end of its life. Plus, with its plush insulator pad, it regulates heat, ensuring you're not sweating buckets by dawn.

Who it will not suit / Who I do not recommend it for

Now, let's be clear: this mattress is not for the faint-hearted. If you're someone who dreams of sinking into a soft, cloud-like bed, the Rock Hard Mega Firm might feel more like a slab of stone. Additionally, while the hand-tufted sleep surface amplifies the firm feel, it might come across as much too hard for the average person. You see, this is a specialist product, that means those without requirements for a firm mattress with orthopaedic qualities should look elsewhere. Side sleepers will also not find this product suitable as there is no sinkage for the hips or shoulders.

How firm is it?

The name says it all, the Rock Hard Mega Firm Mattress is not just firm; it's mega firm. It's designed for those who crave an intense, orthopaedic feel. We recommend this for back sleepers only who require ortho properties.

Benefit of polyester fillings

Despite its mega firmness, the mattress doesn't skimp on comfort. The High Density Compressed polyester fillings ensure a snug feel, while the blissful extra firmness ensures you're supported throughout the night. It's like having a firm yet comforting hug every time you lie down. Polyester might not seem premium, but it is particularly effective for comfort while also keeping costs to a minimum, offering a good night's sleep at fair value.

Benefit of pocket springs

The 1500 pocket springs are the stars of the show here and are typically found in more expensive variants. The benefits of these springs are vast, with them outperforming open coil and reflex foam competitors. These springs gently contour to your body, providing personalised support and ensuring your spine is aligned just right. And for those who like to live life on the edge (literally), the additional steel support around the mattress edge ensures you won't roll off.

Will the mattress suit couples?

For couples, this mattress is a mixed bag. On one hand, the individual pocket springs ensure minimal motion transfer, so if your partner is the type to dance in their sleep, you won't be jolted awake. On the other hand, the mega firmness doesn’t suit most people, let alone two people together. That said, if you both require orthopaedic tension, it’s a winner.

What do customers think?

The product has certainly made an impression on its users with many having taken to praising its unparalleled firmness and support. There's a recurring theme of customers waking up without the usual aches and pains, feeling invigorated and ready to tackle the day. However, as with all things, it's not a universal love affair. Some users found the mattress a tad too hard for their liking, expressing a desire for a bit more give. It's a testament to the fact that comfort is subjective, and while many adore firmness, a few wished for a softer embrace. That said, we want to be clear, this is an orthopaedic very firm mattress, it is not to be purchased by those who either sleep on their side or do not have specific firmness needs.

Why you can trust WantMattress We spend hours testing (and/or researching) every product or service we review, so you can be sure you’re buying the best. Find out more about how we test.

How does it feel?

Personalised feel depends on bodyweight. Adjust your weight below to get an indication of how the Rock Hard Mega Firm 1500 Pocket Mattress may feel.

weight description image

Price History

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Alternative products with similar specifications

We have handpicked some alternate options that should perform equally well that are worthy of consideration if you are interested in the Rock Hard Mega Firm 1500 Pocket Mattress.

Quantitative Measurements KPI question mark
Of The Rock Hard Mega Firm 1500 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.
Of The Rock Hard Mega Firm 1500 Pocket Mattress
Brand: Mattress Online
Retailer: Mattress Online
Delivery Time: Excellent
Delivery Charge: Excellent
Guarantee: Good

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 Rock Hard Mega Firm 1500 Pocket Mattress

What are Pocket Springs?
What are Pocket Springs?
By BedStar
Firm vs Soft Mattress
Firm vs Soft Mattress
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Mattress Online
Mattress Online
By Mattress Online

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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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