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Simba Hybrid Duvet Review

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Written By Connie

CPD Sleep Consultant

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Our testing process

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8 April 2024 7 min read

Simba is known for making high-quality products, but is that the case with their new Simba Hybrid Duvet?

On paper, it sure seems so. However, before we start gushing over this seemingly perfect duvet, we wanted to put it to the test and find out whether that’s really the case. What was our final verdict? Well, let’s find out in our Simba Hybrid Duvet review!

Advantages

An icon depicting a leaf indicating hypoallergenic properties
100% hypoallergenic
Safe for people with allergies.
An icon depicting a thermometer illustrating a good thermo regulating properties
Thermo-regulating
You won't be cold nor will you get too hot.
An icon depicting a magnifier indicating high quality
High quality & durable
It will last long time.

Disadvantages

An icon depicting a money bag indicating an expensive product
High price tag
Super expensive when compared to similar duvets.
An icon depicting no warranty
1 year warranty
You only get a 1 year warranty.

Who is the Simba Hybrid duvet for?

If you're in need of a highly durable, high-quality duvet that you can use all year round, then, the Simba duvet is the right choice for you. This is a two-sided duvet with temperature regulating properties and a 10.5 tog rating, making it ideal for all seasons and for those who have trouble maintaining a consistent body temperature at night.

What do we use this product for?

Simba Hybrid is a duvet that you can use all year round. It's double-sided, with one side being the cool one and the other being warmer. It's perfectly balanced at 10.5 tog, and as a cherry on top – unlike the previous model, this duvet is actually hypoallergenic.

Is the Simba Hybrid Duvet an upgraded version of a previous Simba duvet?

Yes. Simba Hybrid is the new and improved version of the previous Stratos Hybrid Duvet. Unlike the previous model, this one is hypoallergenic, lightweight and made from recycled materials, via more sustainable methods. Overall – this is a much better all-around product that will never get out of date. especially due to its high-quality cotton, higher thread count, and widespread central heating/cooling.

Features you should know about the Simba Hybrid Duvet

Just like any other duvet – the duvet has its own set of defining features and characteristics that we wanted to talk to you about. Considering all the features, we can say safely that this is a a perfect all year rounder.

a close-up shot of Simba hybrid duvet
300 thread count

As we’ve already said, this is a two-sided duvet. Both sides of this duvet are made from pure, 300 thread count BCI cotton. The only difference is – the cool side is enriched with Simba’s own Stratos technology, but we’ll get to that in just a second. As you know, cotton is naturally hypoallergenic and great at wicking away excess moisture. Therefore, staying cool, dry and allergy-free shouldn’t be an issue for you.

Furthermore, the cotton cover is a quilted design, ensuring that the super-soft fillings of the duvet are evenly spread – preventing lumping or bunching. Therefore, it is super soft and highly recommended for sensitive skin.

Stratos temperature regulation layer

Stratos temperature regulation layer is what makes this duvet easily usable throughout the whole year. Now, Simba’s explanation of the Stratos technology is pretty vague, which is reasonable, considering it does a wonderful job keeping things cool and they wouldn’t want their competition to get a hold of it. To protect astronauts, the engineers had to come up with a new technology that was specifically designed for staying cool/warm without getting sweaty.

So, it was originally developed for space missions. But, all we know is that Stratos is an astronaut-inspired, phase change technology that is applied to cotton. Stratos promises to absorb, store and release excess heat when needed, and from what we've experienced during our testing – it delivers on its promises. Whether there are some temperature fluctuations, you will not get hot/cold no matter what.

Simba Renew fibres

With the new and upgraded Simba duvet, Simba decided to move on from the traditional feather and down fillings, as those could occasionally trigger allergies. Instead of feathers, Simba moved on to Simba Renew fibres.

Simba Renew is a recycled plastic bottle fibre filling embedded with minerals, which also help in regulating body heat. These synthetic, siliconised fibres are thin, light and super-soft – making them the perfect filling for an all-season duvet.

Not only that, but Simba Renew fibres are also hypoallergenic, so you will no longer have to worry about dust mites or any other allergens that can find their way into and onto your duvet.

Review of the Simba Hybrid duvet

Our reviewer Sleeping under the Simba hybrid duvet

If we were to put it simply, this is easily one of the best all-season duvets we’ve ever had the pleasure of reviewing. Everything about it is good or better.

First of all, the duvet is very soft, light and comfortable. So, if you don’t prefer the hugging feeling of a duvet – this is just the right choice for you.

When it comes to the craftsmanship and quality of the materials used, we can only say – bravo!

Materials feel premium and luxurious, the design is great, and the duvet looks pretty durable.

The main selling point of this light duvet is certainly its temperature regulation. And we have to say – this temperature regulating duvet is remarkable. The Stratos side (blue side) will keep you cool even during the hottest summer nights. 

Finally, the recycled Simba Renew fillings are super-soft, hypoallergenic and that’s pretty much all we could ask for.

KEY FEATURES:

  • Filling: 100% Polyester (Simba Renew Bio)
  • Cover: 100% cotton with Stratos finish (top) and 100% cotton (bottom)
  • Size: Single, Double, King, Super King
  • Breathability: 9/10
  • Hypoallergenic: Yes
  • Removable cover: No
  • Warranty: 1-year
  • Trial: 30-night trial

What we like about the Simba Hybrid duvet

What we didn't like about the Simba Hybrid duvet

Check the alternatives to the Simba Hybrid duvet

In case you’re not interested in Simba Hybrid for whatever reason, we decided to present you with the best alternative.

Panda Cloud duvet

a product image of panda cloud duvet

Panda Cloud is another all-season 10.5 tog duvet, only this time, instead of 100% fibre fillings, we’re looking at the mixture of bamboo and nano-fibre.

Once again, it's a hypoallergenic duvet, which is always lovely to see and unlike Simba Hybrid, this one comes with a 5-year warranty and a 30-night trial period.

The active temperature regulation is achieved via using bamboo-infused layer that keeps the heat away from your body and ensures you stay cool and moisture-free. Though it is not a down duvet, this can be a winter duvet but you can use it during the summer as well.

Read our detailed Panda Cloud Duvet review.

Advantages

An icon depicting an all season product
Great for all seasons
Can be used throughout the year.
An icon depicting a thermometer illustrating a good thermo regulating properties
Thermo regulating
Great thermoregulating properties.
An icon depicting a bamboo
100% bamboo cover
Made of 100% ethically sourced bamboo.

Disadvantages

An icon depicting a money bag indicating an expensive product
High price tag
Due to being a luxury product, this duvet has a price tag that reflects it.
An icon depicting a washing machine, illustrating a product that is not suitable for machine washing
Way too big for a washing machine
It is very unlikely you will put it in the standard washing machine.

Consider the Simba Hybrid pillow if you are buying the Simba hybrid duvet

a product image of simba hybrid pillow with stratos

If you want to add to your sleeping experience and stay in Simba Sleep family, you might consider getting Simba Hybrid Pillow.

This is another high-quality product. Once again, you’re looking at 300 thread count cotton enriched with Stratos technology, so you can be certain that you won’t flip your pillow looking for the cooler side.

Furthermore, this is a highly adjustable pillow, as the inside of it is filled with Nanocubes that you can add or remove to achieve desired thickness and firmness.

The Nanocubes are temperature regulating technologies that keep you cool but also ensure you an appropriate pillow loft. The high quality threads and are visible so you can tell it is a high-quality product at first sight.

Read our full Simba Hybrid Pillow review right here.

Advantages

An icon depicting air passing through a fabric
Breathable
Highly breathable due to Nanocube structure.
An icon representing an eco-friendly & sustainable concept
Eco-friendly
A great option for environmentally-conscious sleepers.
An icon depicting a thermometer illustrating a good thermo regulating properties
Good thermo regulation
Can keep you at an optimal temperature.

Disadvantages

An icon depicting no trial or warranty
No trial
There's no trial period.
An icon depicting no warranty
Short warranty
The warranty is only one year.
An icon depicting a washing machine, illustrating a product that is not suitable for machine washing
Not machine washable
Cleaning the pillow is more difficult.

What makes this product better than some other similar ones?

Simba duvet is arguably the best duvet when it comes to regulating temperature all throughout the year. You won’t get too hot during the summer and you won’t feel cold during the winter and that is by far the most significant advantage of this duvet. 

How did we test the product?

Our reviewer testing a folded Simba hybrid duvet

Every product goes through a testing process so we can find out how it performs and how it compares to other products. To generalise, each test includes the following three steps:

  • Visual inspection
  • Hands-on inspection
  • Measured tests

To make things a bit clearer, here's how we test the durability of a duvet:

Overall impressions of the product after the testing

We loved receiving the Simba Hybrid Duvet in its own zip-up bag with handles. This provides future use for storage and ticks the box of being able to be reused. Whether you use it to store the duvet in when you're not using it or use it to keep your spare bedding in.

There was a clear distinction between the “cool” and “regular” side of the duvet. Within seconds you can see the Stratos technology pattern and blue piping on one side so you know which side is cool. When lying under the duvet, we found the non-Stratos side to be smooth and soft touch but the other isn't so much. Would recommend having a duvet cover anyway as another layer of protection and to make your sleep a little more comfortable.

Another small design detail is the small tag in the corner that tells you where it should be on your bed – I found this a helpful indicator so I wasn't rotating and flipping the duvet to get it right.

The 10.5 tog duvet has the perfect amount of filling for the Winter months or if you're a cold sleeper like me then it's great all year. It's good to snuggle up under when it gets colder but remember to flip it to the normal side. Of course, when the temperature starts to warm up, you can switch it back to the Stratos side.

All in all, the difference between the cool and regular side is very noticeable. Both sides did what they were designed to do, and the overall feel of the duvet was more than comfortable. It was pleasant, cosy and not at all heavy.

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FAQs about your Simba Hybrid duvet

In the end, we wanted to wrap things up by answering some of the most frequently asked questions about the Simba Hybrid. As we’ve previously mentioned, due to the high popularity this Simba duvet has been redesigned over the years, so we wanted to clear up any confusion that might be there.

Is the Simba Hybrid Duvet suitable for hot sleepers?

Yes. Simba’s Stratos technology makes this duvet more than suitable for people that sleep hot.

How do I wash my Simba Hybrid Duvet?

Unless you have a very large washing machine, we suggest that you wash your Simba duvet professionally. Otherwise, it can be washed at 40°C with a mild detergent and tumble dried on a low heat.

Does the Simba Hybrid Duvet come with a duvet cover?

No, the Simba Hybrid Duvet does not come with a duvet cover. However, we would advise using a duvet cover to prolong the life of your duvet.

Is Simba Hybrid duvet prone to moisture retention?

No. The upgraded rendition of the Simba Hybrid isn’t prone to moisture retention, mostly due to the Simba Renew fibres that fill up the duvet.

About the author

Connie
As a CPD certified Sleep Consultant I know how important sleep is. And as a combination sleeper, I have found it difficult to get products to suit my sleep style. I have more than 2 years product testing experience with The Sleep Advisors which means I have slept on, with and under more than 500 products with varying degrees of success. This is added to more than 2 years experience as a product reviewer for Closer, Heat and Grazia magazines, so I've got a rigorous process. I love sharing my sleep testimonials with our readers and hearing their experiences too.
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