Who is the Simba duvet suitable for?
The Simba duvet is a high-quality duvet that’s definitely worth the financial investment if you have trouble finding the perfect temperature.
We’ve read a few Simba duvet reviews focusing on people struggling with hot flushes or night sweats and women undergoing menopause, and they all swear by it.
It will also be an excellent choice for people with higher body temperatures or those with a higher metabolic rate, who’ll benefit from the thermo-regulating technology. 🚴♀️
It’s also a great option if you’re looking for a convenient all-seasons solution.
We think the Simba duvet is particularly suitable for:
- People who struggle with hot flushes or night sweats.
- Women undergoing menopause.
- People with higher body temperatures or those with a higher metabolic rate.
- Hot sleepers.
- People looking for a convenient all-seasons solution.
Take a look at our overview rating before deep-diving into our full review below.
Rating
What does sleeping with the Simba duvet feel like?
Our initial impression of the Simba duvet revealed a somewhat crisp feel, almost reminiscent of a waterproof mattress protector.
Thankfully, this largely disappears once placed inside a duvet cover, leaving a subtle "crackle" similar to a high-quality down duvet.
Despite this, we feel that sleeping under the Simba duvet is exceptionally comfortable.
It gently envelops your body, providing a snug yet airy feel that avoids any sensation of being weighed down.
Does the Simba Hybrid duvet sleep hot?
Unlike traditional duvets, the Simba Hybrid Duvet doesn't have a fixed tog rating.
This is because its adaptive Stratos technology (more on this further down) is designed to adjust to your body temperature, warming you up or cooling you down as needed.
While general estimates place its warmth around 10.5 tog, its performance also depends on factors like your duvet cover material and personal sleeping temperature.
Ultimately, the Simba Hybrid duvet excels as an all-seasons duvet, offering consistent year-round comfort perfect for the varied UK climate.
Even during testing in the unpredictable London autumn, any initial warmth quickly dissipated, providing optimal comfort throughout the night.
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![Simba Hybrid Duvet]()
![Simba Hybrid Duvet]()
Simba![Simba]()
Hybrid DuvetPrice from £ 139The Simba Hybrid Duvet is a convenient all-season duvet with excellent temperature regulation.The Simba Hybrid Duvet is a convenient all-season duvet with excellent temperature regulation.Price from £ 139
Simba Hybrid duvet composition
The Simba Hybrid duvet, like most Simba sleep products, features a unique hybrid design, though its construction differs slightly from the company's mattresses. 🌀
This innovative duvet is crafted from three key components:
- Top cover: 100% BCI (Better Cotton Initiative [1]) cotton with advanced Stratos technology
- Core filling: The innovative Simba-Renew fibre
- Bottom cover: Also 100% BCI cotton
Let’s unpick the clever Simba-Renew fibre filling and cotton cover in more detail.
Simba-Renew fibre filling: The down alternative?
Simba claims their Simba-Renew filling outperforms traditional down and feathers.
It certainly offers a luxurious, soft feel, remarkably similar to a high-quality down duvet.
It's also significantly loftier than most other synthetic duvets we've tested, but while wonderfully plush, it remains a touch thinner and less bulky than natural down.
The eco-friendly Simba-Renew fibres are ingeniously made from recycled PET plastic bottles. ♻️
Simba layers these tiny, siliconised fibres to create an exceptionally soft and incredibly lightweight duvet.
You'll be struck by just how light the Simba duvet feels for the impressive warmth it provides.
Unlike many synthetic duvets requiring bulk for warmth, Simba-Renew fibres offer a superior warmth-to-weight ratio and boast outstanding thermal properties. 🔥
The Simba Hybrid duvet cover: Smart design & materials
The Simba Hybrid duvet features a distinct two-sided cover, allowing you to choose which side faces your body for personalised comfort.
Both sides are made from 100% BCI-sourced cotton, supporting sustainable farming, while cotton's natural breathability helps maintain a cool night's sleep. ❄️
While one side is pure cotton, the other boasts space-inspired Stratos technology, drawing on advanced thermal management principles.
But how does Stratos technology help with temperature regulation?
Stratos is a phase-change material (PCM) with microcapsules that absorb heat when warm and release it when cool, actively adapting to your body temperature for optimal thermal regulation.
This technology also features in the Simba Hybrid pillow.
Wondering which way up to use your Simba duvet?
There’s no right or wrong, but for maximum benefit from Stratos technology, keep that side closest to your body.
Check out these Stratos-tech Simba products:
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![Simba Hybrid Duvet]()
![Simba Hybrid Duvet]()
Simba![Simba]()
Hybrid DuvetPrice from £ 139The Simba Hybrid Duvet is a convenient all-season duvet with excellent temperature regulation.The Simba Hybrid Duvet is a convenient all-season duvet with excellent temperature regulation.Price from £ 139 -
![Simba Hybrid 3-in-1 Duvet]()
![Simba Hybrid 3-in-1 Duvet]()
Simba![Simba]()
Hybrid 3-in-1 DuvetPrice from £ 249The Simba Hybrid 3-in-1 Duvet is a set of two duvets that can be combined to form a third 10.5 tog duvet.The Simba Hybrid 3-in-1 Duvet is a set of two duvets that can be combined to form a third 10.5 tog duvet.Price from £ 249 -
![Simba Hybrid Pillow]()
![Simba Hybrid Pillow]()
Simba![Simba]()
Hybrid PillowPrice from £ 109The Simba Hybrid Pillow is an excellent choice for those in need of adjustable support.The Simba Hybrid Pillow is an excellent choice for those in need of adjustable support.Price from £ 109
Simba duvet washing instructions
Conveniently, the Simba duvet is fully machine-washable at 40℃. 🛀
Even though the duvet is hypoallergenic [2], washing at high temperatures effectively kills dust mites and this makes the duvet less likely to cause allergies. 🤧
You can also tumble dry the duvet at a low temperature.
Simba Sleep recommends that you tumble dry the duvet until the filling is completely dry to prevent mould from forming.
You only need to wash your duvet once every 6 - 12 months. 🗓
While cleaning and drying at home sound convenient, the ability to do so depends on the size of your washing machine.
For instance, if you have a super-king size duvet, it might not fit into your machine, and you’d have to bring it in to be professionally cleaned.
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![Simba Hybrid Duvet]()
![Simba Hybrid Duvet]()
Simba![Simba]()
Hybrid DuvetPrice from £ 139The Simba Hybrid Duvet is a convenient all-season duvet with excellent temperature regulation.The Simba Hybrid Duvet is a convenient all-season duvet with excellent temperature regulation.Price from £ 139
Simba Hybrid duvet sizes
The Simba Hybrid duvet is available in a range of UK duvet sizes, including:
- Simba duvet single: 135 x 200 cm (4’6” x 6’6”)
- Simba double duvet: 200 x 200 cm (6’6” x 6’6”)
- Simba duvet king: 230 x 220 cm (7’5” x 7’2”)
- Simba duvet super-king: 260 x 220 cm (8’5” x 7’2”)
Generally, you should choose a duvet that matches your bed size. 🛏
But, you may wish to select a larger duvet if you quickly feel cold, share your bed with a duvet-hogging partner, or for aesthetic appeal to have the duvet drape down the sides of your bed frame.
Simba duvet prices & discount codes
The Simba duvet is not the most affordable on the market, especially considering it contains synthetic filling. 💷
It’s also quite a bit more expensive than the Panda Cloud Duvet, one of Sleep Hero’s favourites, or the more comparable DreamCloud duvet.
But, given the space-inspired technology and cooling properties of the duvet, the cost is well-warranted.
Simba Sleep rarely offers discounts and promotions, but you may benefit from a "free bedding" offer every now and then.
If there are any discounts currently running, we'll be sure to promote them here.
Also check out our Simba discounts code article for more.
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![Simba Hybrid Duvet]()
![Simba Hybrid Duvet]()
Simba![Simba]()
Hybrid DuvetPrice from £ 139The Simba Hybrid Duvet is a convenient all-season duvet with excellent temperature regulation.The Simba Hybrid Duvet is a convenient all-season duvet with excellent temperature regulation.Price from £ 139
Simba duvet delivery & trial conditions
The Simba Hybrid duvet arrives conveniently rolled and boxed, with free next-day delivery if you order before 2pm. 📦
You'll receive delivery updates, usually via email, prior to its arrival.
We still received our duvet in thick, recyclable plastic, but the packaging has since changed and Simba now delivers its duvets in a reusable storage bag, which is very handy.
Unlike Simba mattresses, the Simba Hybrid duvet does not come with a trial period.
This means you cannot return it for a full refund if unsatisfied, which is a key consideration given its price.
That said, duvet trial periods are generally rare across the UK market - the Panda Cloud duvet is a notable exception, offering a 30-night sleep trial.
But, the Simba Hybrid duvet does come with a 1-year guarantee, covering any manufacturing defects.
While this is shorter than some competitors - for example, Panda and Silentnight offer 5-year guarantees on their duvets,and Nectar and DreamCloud provide 2-year terms - it still provides essential protection for your purchase.
Is the Simba duvet worth it?
If you’re looking for active temperature regulation, the Simba duvet is well worth it.
But if you’re just looking for a standard duvet that will keep you warm and snug, there are better value-for-money options.
We're also massive fans of the Simba Hybrid 3-in-1 duvet, which is a more versatile option Simba's thermoregulating power.
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![Simba Hybrid Duvet]()
![Simba Hybrid Duvet]()
Simba![Simba]()
Hybrid DuvetPrice from £ 139The Simba Hybrid Duvet is a convenient all-season duvet with excellent temperature regulation.The Simba Hybrid Duvet is a convenient all-season duvet with excellent temperature regulation.Price from £ 139 -
![Simba Hybrid 3-in-1 Duvet]()
![Simba Hybrid 3-in-1 Duvet]()
Simba![Simba]()
Hybrid 3-in-1 DuvetPrice from £ 249The Simba Hybrid 3-in-1 Duvet is a set of two duvets that can be combined to form a third 10.5 tog duvet.The Simba Hybrid 3-in-1 Duvet is a set of two duvets that can be combined to form a third 10.5 tog duvet.Price from £ 249
Contact Simba Sleep UK
Customer service: To contact Simba Sleep directly for complaints, support, or queries, please e-mail them at hello@simbalseep.com or visit their live online chat. Their 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
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Is Simba an environmentally-friendly duvet?
Simba is an environmentally-friendly company, minimising its environmental impact in any way.
Simba mattresses are pro-planet and free from TCPP, paragons, biocides, and other harmful chemicals.
Products are also manufactured in an eco-factory accredited with ISO 14001.
This means environmental impact is constantly monitored, and energy is obtained from certified renewable sources.
The Simba duvet filling is also made from recycled PET bottles, and cotton is sourced from Better Cotton Initiative producers.
In future, we’d also love to see Simba put more of an environmental focus on their packaging and limit the use of plastics.
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Can you buy the Simba duvet on Amazon or through other retailers?
Yes, the Simba Hybrid duvet is available on Amazon in the UK.
It is described slightly differently, featuring Aerelle cool night polyester fibres as the core filling.
This duvet also has top and bottom sides marked on the actual cover.
While this is still the duvet with Stratos active temperature regulation and not the previous version of the duvet made with Outlast temperature-regulating technology, the Simba duvet sold on Amazon is not exactly the same as the one sold on the Simba website.
Amazon UK also sells the Simba Smartfill duvet and the Simba Microfibre duvet.
Simba duvets are currently not available through other retailers like John Lewis.
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Can you tell me more about Simba Sleep?
Simba Sleep is a British bed-in-a-box mattress company first founded in 2015.
They focus almost exclusively on hybrid products, with hybrid mattresses at the core of the company.
Simba products are characterised by quality craftsmanship and high-quality materials, with some revolutionary space-inspired cooling technology.
The company is a member of Great Britain’s National Bed Federation [3] and manufactures products according to British safety standards.
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What else does Simba Sleep sell?
In addition to the Simba Hybrid duvet, Simba Sleep UK also offers numerous other sleep products.
These include the company’s award-winning mattresses:
Simba Sleep also offers their state-of-the-art Simba Hybrid mattress topper, as well as the Simba pillow, duvet, mattress protector, weighted blanket, and bedding.
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References
Alternatively, message us directly via the Contact Us page.