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Your little one does most of their growing at night, so it's hugely important that their mattress encourages healthy development. The Simba Hybrid® Kids Mattress does this and more, offering unparalleled support to their growing body, as well as plush comfort that will get them excited for bedtime.

Orthopaedic spinal support for growing bones

A layer of innovative Aerocoil® Microsprings provide intense orthopaedic support with a medium firm feel. This is the ideal tension for healthy bone development, keeping your child's spine properly aligned and posture controlled as they grow. These springs adapt to their movements throughout the night, tailoring support to their pressure points as they move.

Beneath this incredible support layer is a blanket of spring-comfort high definition foam. This, working alongside the rigid foam support base, contours to the natural curvature of your little one's body, applying gentle pressure relief to their joints. Edge support ensures they stay supported no matter how they wriggle in the night, offering orthopaedic support right to the very edge of their bed.

Cooling, breathable memory foam that cradles your little one in comfort

Above the innovative microspring support unit is a layer of cooling, open-cell foam infused with graphite to naturally reduce overheating, keeping your child at the optimal sleeping temperature. This foam also cradles them in comfort, complementing the pressure relieving qualities of the Aerocoil® springs.

A super soft, breathable sleep surface encourages airflow throughout the entire Simba Hybrid® Kids Mattress, enhancing the hypoallergenic properties of mattress and encouraging a cleaner, more hygienic sleeping environment.


Aerocoil® Microsprings icon
Aerocoil® Microsprings
Small, cone-shaped titanium springs that provide precise, tailored support as you move.
Graphite Infused Simbatex® Cooling Foam icon
Graphite Infused Simbatex® Cooling Foam
Infused with cooling graphite for a science-based, refreshing night’s sleep.
16cm Depth icon
16cm Depth
This mattress is approximately 16cm deep.
Orthopaedic Support icon
Orthopaedic Support
Designed to offer a firmer sleep surface, providing targeted support for your back and joints.
Reinforced Edges icon
Reinforced Edges
The mattress has reinforced edges, so that the full sleep surface can be used. This means more sleeping space - which is usually lost in conventional, less edge-stable mattresses.
No Need To Turn icon
No Need To Turn
A single-sided mattress which does not need to be turned/flipped. One-sided mattresses should, however, be rotated head to toe regularly.
Vacuum Packed & Rolled icon
Vacuum Packed & Rolled
Rolled mattresses have the advantage of being easy to transport, especially to upstairs bedrooms. When unrolled, they expand fully and are usually ready to sleep on within 48 hours.
Pressure Relieving icon
Pressure Relieving
This type of mattress gives maximum pressure relief, allowing your body weight to spread across it evenly. This ultimately means less tossing and turning throughout the night and a more relaxing and restful sleep.
Hypoallergenic icon
Being hypoallergenic, this is the perfect item for allergy sufferers - or anyone looking for a healthy night's sleep.
Zoned CertiPur® Foam Base icon
Zoned CertiPur® Foam Base
Specific support zones target your body's pressure points for precise pressure relief and posture control.
Made in The UK icon
Made in The UK
This item has been manufactured in the UK.

Additional features

  • Knitted CoverThis luxurious soft knitted cover is breathable, which helps to keep the sleeper at an even temperature all night long.
  • Vegan FriendlyThis product is made from materials that are 100% free from animal by-products.
  • Made by an NBF-Approved ManufacturerPeace of mind and reassurance - the manufacturer of this item is an approved member of the National Bed Federation.
  • Fire Resistant - Low HazardThis product conforms to the BS7177: 2008 standard for domestic use (low hazard) - ideal for use at home.
  • Aerocoil® Microsprings target support to precise pressure points, adapting to movements throughout the night
  • Orthopaedic properties with a medium firm feel - ideal for supporting growing bodies
  • High definition foam with edge support ensures optimal support at every inch of the mattress, offering your child the maximum amount of sleep surface
  • Graphite memory foam actively cools your little one, keeping them at an optimal sleeping temperature
  • Innovative pressure relieving foam contours their body, cradling them in personalised comfort
  • Incredibly breathable with hypoallergenic properties for a healthy, more hygienic night's sleep
100 Night Sleep Trial
100 Night Sleep Trial icon
100 Night Sleep Trial
Finding the perfect mattress shouldn't be stressful. That's why we offer a generous 100-night sleep trial. Snuggle in, test it out, and enjoy the comfort. If it's not your perfect match, simply let us know. We'll gladly take it back and give you a full refund. All you have to do is cover any return costs and we'll do the rest.

Download sleep trial information

Subject to Terms & Conditions

Warranty & Guarantee

Simba® 10 Year Guarantee

Simba are certain you’ll love your new mattress, but for complete peace of mind they offer a 10 year guarantee. In the very unlikely case that you discover a defect as a result of faulty workmanship or materials, they’ll swap it for a new one. Please see: https://simbasleep.com/pages/ten-year-guarantee for further info.

Simba Hybrid® Kids Mattress

5.0 star rating
based on 3 reviews
5.0 out of 5
Aerocoil® Microsprings
Graphite Infused Simbatex® Cooling Foam
16cm Depth
Knitted Cover
Orthopaedic Support
Firmness: Medium Firm
100 Night Sleep Trial
Award Winning Product
You save £80
from £269
Size chart
3' x 6'3"
This product combination is unavailable.

Free Delivery in 2-3 Days

Place your order now and we'll contact you to arrange delivery when your order is ready for despatch. You can then choose our popular next day delivery or select a day & time of your choice and get delivery when it's convenient for you.

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Rated Excellent

Trustpilot star rating 5.0/5 based on 3 reviews
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Trustpilot Star rating Verified

Very comfortable. Arrives well packaged - vacuum packed and in a sturdy box.

C Spiller 5th Mar
Trustpilot Star rating Verified

Brilliant, great price, super fast free delivery. Kids are happy and the mattress fits in a bunk bed well which is why I went for this one. Very comfortable for those nights where I have to climb in for a snuggle too! well recommended

Kayleigh 14th Feb
Trustpilot Star rating Verified

Comfortable mattress for 3yo and also for any adults who may find themselves in the bed too!

Katie 5th Feb
Real Homes Rated Gold
Prioritising real people, real problems and importantly, real budgets, the Real Homes team look for the most realistic ways to improve your home. Mattresses with a Real Homes Rated Gold Award are not only one of few selected after a lengthy testing period, but chosen once again to be rated Gold. These mattresses are the best of the best.
Real Homes Rated Gold

Also paired with

Simba® Performance Mattress Protector

Simba® Performance Mattress Protector

From £99

Simba Hybrid® Pillow

Simba Hybrid® Pillow

£89 £109

Simba Hybrid® Duvet

Simba Hybrid® Duvet

From £199

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Your order helps us plant trees

148,090+ Trees planted so far

Free, fast delivery

Award winning delivery

Mattress recycling

Planet-friendly disposals

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0% Interest finance

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18+, T&Cs apply, Credit subject to status
Simba Hybrid® Kids Mattress

Simba Hybrid® Kids Mattress


Pair it with

Simba® Performance Mattress Protector Simba® Performance Mattress Protector
5.0 star rating

5.0 (2)

From £99

Simba Hybrid® Pillow Simba Hybrid® Pillow
4.8 star rating

4.8 (32)

£89 £109 You save £20

Simba Hybrid® Duvet Simba Hybrid® Duvet
4.5 star rating

4.5 (6)

From £199

Size Imperial Metric
Small Single 2'6" x 6'3" 75cm x 190cm
Single 3' x 6'3" 90cm x 190cm
Small Double 4' x 6'3" 120cm x 190cm
Double 4'6" x 6'3" 135cm x 190cm
King Size 5' x 6'6" 150cm x 200cm
Super King 6' x 6'6" 180cm x 200cm
European Small Single 2'8" x 6'6" 80cm x 200cm
European Single 3' x 6'6" 90cm x 200cm
European Double 4'7" x 6'6" 140cm x 200cm
European King Size 5'3" x 6'6" 160cm x 200cm

All mattress sizes given are approximate and stated sizes refer to the sleeping surface only. Mattresses sizes may vary slightly from their stated dimensions due to manufacturing tolerances, please allow +/- 2 inches (5cm).

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18+, T&Cs apply, Credit subject to status. Bedsonline.biz Ltd is authorised and regulated by the Financial Conduct Authority (FCA FRN 710091) and acts as a credit intermediary and not a lender, offering credit products provided exclusively by Klarna Bank AB (publ). Finance is only available to permanent UK residents aged 18+, subject to status, terms and conditions apply. Klarna’s [Pay in 3 instalments] [and] [Pay in 30 days] are unregulated credit agreements.Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. Ts&Cs and late fees apply.

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