Simba Hybrid Firm Pillow

Simba Hybrid Firm Pillow Review UK (2024)

Last updated: 20.02.2024 Reading time: 8 Min.

Tired of constantly adjusting your pillow throughout the night?

The Simba Hybrid Firm pillow is a game-changer, offering unparalleled support and cooling technology. ❄️

This premium pillow is designed for all sleeping positions, with the option to adjust firmness and loft.

But is it worth the high price tag?

Our Simba Firm pillow review will tell you more. 👇

Top features of the Simba Hybrid Firm pillow

Machine-Washable Components
Cooling Materials
Customisable Layers
Highly Sustainable


  • Contains Stratos, an advanced, NASA-inspired technology
  • Adjustable height for all sleeping positions and preferences
  • Cooling technology regulates temperature throughout the night
  • Premium feel with high-tech layers and materials
  • Machine-washable cover and filled pads for easy cleaning
  • 100% recyclable materials and carbon-neutral delivery
  • Fast and easy delivery process


  • Pricey compared to some alternatives
  • No sleep trial for peace of mind (unlike some competitors)
  • Only a 1-year guarantee
  • Zipper broke when we tried to undo the cover

Simba Hybrid Firm pillow composition

The Simba Hybrid Firm pillow is an award-winning product in the Simba range.

This pillow has a different design from the Simba Hybrid pillow, with microfibre layers and a firm mini pocket spring layer instead of Nanocube foam.

But both pillows are fully adjustable.

The Simba Hybrid Firm layers include:

  • 100% BCI cotton cover with Stratos technology
  • Two Simba Renew microfibre pillow layers
  • Aerocoil Firm layer

But what makes these layers so unique? 👇

Simba Renew layers

The two Simba Renew pillow layers are filled with super-soft microfibre, giving a luxurious feather and down-like feel.

Simba Hybrid Firm pillow fibre layers
The Simba Hybrid® Firm pillow includes two microfibre layers.

They provide a soft, cosy surface that gently cushions the head and shoulders.

You can sleep on this soft side or the firmer Aerocoil layer.

We preferred sleeping with the fibre layer on top for a soft and squishier feel. ☁️

Aerocoil layer

The Aerocoil firm layer combines Aerocoil springs and Simba pure foam for optimum support. ✨

Simba Pure foam is inspired by NASA [1], who created the first memory foam products to absorb G-shock during space travel.

The Simba Pure foam relieves pressure on the head and neck.

Meanwhile, the Aerocoil springs support the head and minimise motion. ⛵

The spring layer supports the head across each individual area and reduces the transfer of movement.

Simba Hybrid Firm pillow aerocoil layer

Simba Hybrid Firm pillow aerocoil springs

The mini pocket springs are each encased in a single pocket for individualised support.

Overall, we were very impressed with this layer.

The Aerocoil layer is one of the most advanced features we've seen in a pillow.


Simba Hybrid Firm pillow cover

Now, let's talk about the Simba Firm pillow cover.

Crafted from sustainable cotton through the Better Cotton Initiative [2], it promotes sustainability by reducing the environmental impact of cotton production. 🌿

All Simba products are pro-planet, which means they are free from TCPP [3], parabens, biocides, and other harmful chemicals.

The hypoallergenic cover features a breathable mesh border, allowing excess heat to escape for a cooler night's sleep.

Simba Hybrid Firm pillow up close
The Simba Hybrid Firm pillow has a stylish design.

We appreciate the high-quality feel and the stylish hexagon pattern, which adds a premium touch.

It's also worth noting that the blue and grey border will shine through white pillowcases, which could be inconvenient to some.

We did encounter a slight hiccup – the zipper broke as we tried to remove the cover.

While this was disappointing for such a premium product, we understand that occasional issues can occur.

Simba Hybrid Firm pillow broken zipper
The zipper broke on our Simba Hybrid Firm pillow cover.

Thankfully, the 1-year guarantee should cover this fault. 🛡️

Is the Simba Hybrid Firm pillow comfortable?

The Simba Hybrid Firm pillow is unique because it has customisable layers, ensuring you're well-supported in every sleeping position. 💪

Side sleeping

Side sleepers generally need a high loft and medium-firm pillow to bridge the gap between the head and shoulder.

Simba suggests using all three layers for this position.

Side sleeper on Simba Hybrid Firm pillow
Side sleepers will feel comfortable on a deeper pillow.

However, your comfort will depend on individual factors, such as your body shape and firmness preference. 💁

As we found during our testing, you might be more at ease with just two layers in the side position.

This creates a slightly lower loft, preventing your neck from bending upwards too much.

You can also choose between sleeping directly on the firmer (Aerocoil layer) or the softer (fibre layer) side.

For side sleepers, we recommend the firmer side.

Back sleeping

Back sleepers need a medium loft pillow to align the spine and neck.

Combining the Aerocoil layer with one fibre layer offered a comfortable solution for this position.

It's best to rest your head on the softer fibre layer, which provides a snug cushion when sleeping on your back. ☁️


Back sleeper on Simba Hybrid Firm pillow
Back sleepers will feel comfortable on fewer pillow layers.

This relieves pressure on the head and shoulders, while the Aerocoil layer supports the back and minimises the transfer of motion to keep your head supported throughout the night.

Stomach sleeping

Stomach sleeping can put more strain on your spine, so using a low, soft pillow - or even sleeping without a pillow - is ideal.

For front sleepers, we suggest using just one soft microfibre layer. ✅

Stomach sleeper on Simba Hybrid Firm pillow
Stomach sleepers do best on just one pillow layer.

Ultimately, the Simba Firm pillow is adaptable to every person and sleeping position if you're willing to make adjustments.

How firm is the Simba Hybrid Firm pillow?

Well, the clue's in the name - Simba Hybrid Firm pillow! 😅

But you can adjust the firmness and loft to suit your needs.

You can sleep with the firmer Aerocoil layer at the top or flip over to the fibre layer for a soft, down-like sensation. 🔄

Pressing the Simba Hybrid Firm pillow
The Simba Hybrid® Firm pillow has a firm feel when using all the layers.

The firmness you require depends on your individual preference, body shape, and sleeping position.

Your neck should be straight and aligned with the spine in your regular sleeping position.

If your neck feels strained, try removing a layer or flipping the pillow over for a softer feel. ☁️


Man sleeping on Simba Hybrid Firm pillow
You should adjust the Simba Hybrid® Firm pillow until it suits your requirements.

When first using the pillow, we recommend laying on it for ten minutes to ensure it's suitable before you drift off into dreamland. 😴

After all, you don't want to wake up in the middle of the night with an achy neck!

Does the Simba Hybrid Firm pillow sleep cool?

In addition to providing comfort and support, the Simba Hybrid Firm pillow also features cooling technology to help you sleep at the perfect body temperature.

This includes:

  • A cotton cover with temperature-regulating Stratos technology
  • Breathable Renew fibres
  • Pocket springs that promote airflow
  • A mesh border that allows excess heat to flow out of the pillow

The Simba Hybrid Firm pillow contains Stratos technology. 🌡️

These are microcapsules that are contained in the fabric and absorb excess heat for optimal temperature regulation.

This excess heat dissipates through the gaps of the pocket springs and out of the mesh border.

If you sleep hot, we suggest pairing this pillow with a cool mattress for a more breathable sleep.
Simba Hybrid Firm pillow corner
Excess heat is dispersed out of the mesh border.

We highly recommend this pillow for hot sleepers searching for a cooler pillow option. ❄️


Can the Simba Hybrid Firm pillow be washed?

The Simba Hybrid Firm pillow has washable components.

Follow this guide for full washing instructions:

Washing instructions
Cover and filled microfibre pads Machine washable at 40°C & tumble dry on low heat
Spring pad Sponge clean only
Simba Pure foam Do not wash

While you can wash most parts of the Simba Firm pillow, you have to separate the spring pad and foam from the washable layers. 🔧

This adds more fuss than just popping the entire pillow into the washing machine.

Our favourite washable pillow alternatives:

Simba Hybrid Firm pillow price

The Simba Hybrid Firm pillow price starts at over £150, which is quite expensive compared to other products on the market.

However, it's worth noting that this pillow is more premium than standard microfibre pillows. 🌟

When it comes to pillows, you often get what you pay for.

Cheap, hollowfibre pillows may go flat or lumpy quickly and aren't designed to support your head and neck like the Simba Firm pillow.

Woman sleeping on pillow graphic
The Simba Firm pillow price tag is reflected in the quality.

But the lack of a trial and a short guarantee can make it harder to justify this high price. 💰

Purchasing a good value pillow within your budget is important.

The Emma pillow and Panda Hybrid pillow include 30-night trials, so you aren't stuck with them if they don't provide the proper support.

Moreover, the Emma pillow comes with a 2-year guarantee, while the Panda pillow has an impressive 10-year guarantee, making them much better value options. 👍

Check them out below:

Simba Hybrid Firm pillow discount code

Looking for Simba discount codes to make this premium pillow more affordable?

You're in luck, as Simba Hybrid Firm pillows often go on sale throughout the year, making them more budget-friendly.

You can often find Simba voucher codes online. 🏷️

Man sitting on coins
Simba Sleep offers fantastic sales year-round.

We'll update you on any offers within this article and on our discounts page.


Alternatively, you can sign up for our newsletter to be the first to know about seasonal promotions and special deals all year round. 📧

How is the Simba Hybrid Firm pillow delivered?

The Simba Hybrid Firm pillow can be delivered within 1 - 3 days after placing an order.

We experienced a smooth and seamless delivery process and received email tracking when our Simba Firm pillow had been dispatched.

Our Simba Hybrid pillow arrived in a large rectangular box. 📦

To unbox your pillow, take it out of the box and remove it from the plastic packaging.

Simba Hybrid Firm pillow box

Simba Hybrid Firm pillow box opened

We didn't experience any off-gassing when opening our pillow.

A little note showed us how to use the pillow, and we received an email a few days later with similar instructions.

We appreciated this attention to detail, which helped us understand how to customise the pillow layers. 📝

Simba Hybrid Firm pillow note
Our Simba Hybrid® Firm pillow came with valuable instructions.

Our only disappointment is the lack of a sleep trial, which would have provided better peace of mind when investing in such an expensive pillow. 😕

Is the Simba Hybrid Firm pillow worth it?

So, is the Simba Hybrid Firm pillow the answer to sweet dreams?

Its impressive design and customisability might just be what your sleep routine has been missing. 😍

It caters to various sleeping positions, making it a versatile choice for those willing to invest in their sleep experience.

We're also a big fan of the advanced cooling properties, including the unique spring layer, so we'd recommend this pillow to hot sleepers.

However, we’d prefer a sleep trial at such a premium price to give us extra peace of mind. 🤞



  • Material

    High-quality materials. 

  • Comfort

    Customisable comfort for every sleeping position. 

  • Off-gassing

    No off-gassing. 

  • Breathability

    Advanced cooling properties. 

  • Motion transfer & support

    Excellent support. 

  • Delivery & returns

    No sleep trial and short guarantee. 

  • Value for money

    A longer guarantee and trial would improve value. 

Motion transfer & support
Delivery & returns
Value for money

Contact Simba Sleep UK

Customer service: To contact Simba Sleep directly for complaints, support, or queries, please e-mail them at or visit their live online chat [4]. The customer services team is available Monday to Friday, from 9 am - 5 pm, and Saturdays from 9 am to 1 pm.

Registered office: Simba Sleep, The Stable Yard, 60 Petty France, Westminster, London SW1H 9EU

Frequently asked questions


Holly Matthews

Senior Content Writer

Holly has been a content writer at Sleep Hero UK since 2021. With an MA degree in literature and previous experience working at a leading UK bed retailer, she is committed to using her skills to guide others towards making better sleep choices.

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