Hypnia Duvet

Hypnia All-Seasons Duvet Review UK (2024)

Last updated: 22.04.2024 Reading time: 6 Min.

Seeking a versatile duvet for year-round comfort?

Look no further than the Hypnia All-Seasons duvet. ✋

This hypoallergenic duvet adapts to all temperatures with two layers that can be tied together to cater to every season.

We tested the Hypnia duvet to see if it was up to scratch.

Let’s find out more. 👇

Top features of the Hypnia duvet

Customisable Comfort
2-year guarantee
2-Year Guarantee


  • Soft and cosy with a wrapped-in-a-cloud feeling
  • It keeps you warm and toasty while still being breathable
  • Fully adjustable to every season
  • Machine-washable for extra cleanliness
  • Hypoallergenic and OEKO-TEX certified against harmful chemicals
  • Available in a range of sizes for all ages
  • Made from high-quality recycled fibres
  • Includes a 2-year warranty
  • It comes with a reusable fabric bag


  • It’s not that easy to get either layer back into the bag
  • No trial period

Who is the Hypnia duvet most suitable for?

  • Those looking for a versatile, all-season option
  • Allergy sufferers
  • Hot and cold sleepers
  • Eco-conscious people
  • Kids and adults

Hypnia duvet composition

The Hypnia All Seasons duvet is crafted from 100% recycled hollow slick, a material known for its breathability and lightweight nature.

This eco-friendly choice feels soft and gentle on the skin, so your comfort doesn't come at the planet's expense.

The Hypnia duvet is designed to suit different needs and seasons. ☀️❄️

It has 200g/m² and 300g/m² layers, which can be combined by tying bows at each corner, which can be slightly impractical.


Hypnia duvet weights

Tying Hypnia duvet

We recommend:

  • The 200g/m² layer for summer
  • The 300g/m² layer for spring/autumn
  • The 200g/m² & 300g/m² combined for winter

But you can choose any combination of layers depending on how hot or cool you sleep.

The Hypnia duvet is also OEKO-TEX certified [1], meaning it’s tested against harmful substances in every fibre, thread, and fabric. 🧵

Hypnia duvet cover

The attached cover is made from 100% polyester and feels gentle and cosy against the skin.

The duvet is easy-care for those who want a fuss-free option and can be popped in the machine and washed at 40°C. 🧼

However, we also recommend using a regular duvet cover with your Hypnia duvet to help it last as long as possible.

The Hypnia Percale duvet cover is a great choice:

What does sleeping with the Hypnia duvet feel like?

Sleeping with the Hypnia All Seasons duvet offers a comfortable and cosy sleep.

It's cosy and warm with a soft and gentle feel that makes you feel like you’re being wrapped up in a cloud. ☁️

We tested the Hypnia duvet during the winter and used both layers together.

Tying the bows on each corner can be time-consuming, but much less so than other duvets we’ve tested.

However, if you struggle with tying bones, the Simba 3-in-1 duvet is a great alternative with practical click buttons.

Hypnia duvet corner

Hypnia duvet on bed

Thanks to the breathable fabric, the duvet offers significant insulation to keep us warm without causing overheating.

This balance meant we had an undisturbed night of sleep without needing to constantly struggle in and out of the covers. 😴

Is the Hypnia duvet good for hot sleepers?

We experienced a cosy yet breathable sleep with the Hypnia All Seasons duvet.

But that’s just our personal experience. 😅

To provide a more accurate review of the duvet's thermal capabilities, we tested it using our thermal camera and compared it to the luxury Brook + Wilde Four Seasons Cavendish duvet.

Take a look at these results, and then we’ll break them down for you:

Av. temperature after 10 minutes Av. temperature after 3 mins heat dispersion
Hypnia duvet with 200g/m² & 300g/m² layers 21.4°C 21.1°C
Brook + Wilde Four Seasons Cavendish duvet with 4.5 & 8 tog layers 22.65°C 22.2°C

Both the Hypnia and Brook + Wilde duvets have a two-layer composition designed to be well-insulated while also being breathable.

The results indicated that the Hypnia duvet is the cooler option and the closest to the optimal sleeping temperature of 18°C. ✔️

Learn more about the best temperature for sleep.

The Brook + Wilde duvet has a slightly higher heat dispersion rate of 0.45°C than the Hypnia duvet at 0.3°C, indicating only a slight difference between their performances.

We were very impressed with these results, especially as the Hypnia duvet is available for a fraction of the cost of the Cavendish duvet.

Overall, our results show that the Hypnia duvet is a breathable option, and we recommend it to hot sleepers.

If you do find the two layers too warm, remember you can always separate them and sleep with just one layer. 🔁

Is the Hypnia duvet washable?

The Hypnia All Seasons duvet is designed with practicality in mind.

It is machine washable at 40°C with your regular laundry detergent. 🧼

The duvet layers can be separated, allowing each part to easily fit into a standard washing machine.

Washing duvet
The Hypnia duvet is machine-washable.

A fully washable duvet is particularly beneficial for allergy sufferers, those who sweat at night, or households with children where nighttime accidents might occur. 💦

Another useful aspect of the Hypnia duvet is its dual-layer functionality.

When one layer is being washed, you still have another available for use.

This means there’s no waiting around for your duvet to dry, and you can continue enjoying a comfortable sleep, making this duvet a practical choice for busy lifestyles.


Hypnia duvet sizes

The Hypnia duvet is available in standard UK sizes.

Duvet sizes

These sizes include:

  • Hypnia single duvet: 135 x 200 cm (4'6" x 6'6")
  • Hypnia double duvet: 200 x 200 cm (6'6" x 6'6")
  • Hypnia duvet king size: 230 x 220 cm (7'5" x 7'2")
  • Hypnia duvet super-king: 260 x 220 cm (8'5" x 7'2")

We recommend choosing a duvet that matches your bed size or one larger if you want it to overhang for a draped look.

Unfortunately, we were sent a single-size duvet instead of a double-size for our Hypnia duvet review.

We always recommend double checking you have opted for the correct size before placing your order. 📏

Hypnia duvet prices

The Hypnia All Seasons duvet is priced moderately. 💰

It’s a more affordable alternative to other adjustable duvets, such as the Simba Hybrid 3-in-1 duvet and the luxurious Cavendish Four Seasons duvet by Brook + Wilde.

However, standard, non-customisable options like the Emma duvet and DreamCloud duvet are available at more cost-friendly prices.

Duvet price-performance ratio
The Hypnia duvet strikes the perfect balance between price and quality.

Yet, its 2-in-1 ability to adapt to different seasons eliminates the need for multiple duvets, making it a value-for-money choice in the long term.


Hypnia duvet delivery & returns

The Hypnia duvet comes with free standard delivery and will be shipped within 48 hours. ⌛

Our Hypnia All Seasons duvet arrived promptly in a large cardboard box.

The duvet was also packed into a reusable fabric bag.

Hypnia duvet bag

Hypnia duvet bag from front

This makes it an excellent option for those who need to easily store a duvet or use it for travelling or sleepovers. 🚆

However, refolding and repacking the duvet into the bag is somewhat cumbersome, making it less suitable if you plan on doing this regularly.

Can I return the Hypnia duvet?

Unfortunately, the Hypnia duvet doesn’t include a sleep trial, but it does come with a 2-year guarantee against manufacturing faults. 🤞

Therefore, if you have any issues with your Hypnia duvet, such as seams coming apart or other material defects, you are protected by this warranty period.

To return your Hypnia duvet, you can contact the Hypnia team for assistance.

You’ll need your order number and the ability to upload images of the fault so Hypnia can deal with the problem efficiently.

Should you buy the Hypnia duvet?

The Hypnia duvet stands out with its high-quality recycled fibres, offering a cosy yet breathable sleeping experience. 🌬️

It's versatile across seasons, easy to clean, and safe from harmful chemicals.

Compared to many other 2-in-1 duvets available, the Hypnia duvet is very good value for money.

This duvet also supports environmental sustainability and comes with a solid 2-year warranty, making it a responsible and reliable choice for any home. ✅



  • Material

    Quality materials & design

  • Comfort

    Snuggly and comfy

  • Breathability

    Highly breathable

  • Delivery & returns

    Good guarantee but no trial

  • Value for money

    Costly but worthwhile

Delivery & returns
Value for money

Contact Hypnia UK

Customer service: To contact Hypnia UK directly for complaints, support, or queries, call them on 020 4571 7560, or pop them a message on their contact form [2]. Hypnia support is available Monday - Friday from 10 am - 6 pm.

Registered office: Unit 106 Aviation Park West, Bournemouth Airport, Christchurch, Dorset, United Kingdom, BH23 6NW

Frequently asked questions

  • What else does Hypnia UK sell?

    Hypnia UK sells a range of different sleep products, including mattresses, pillows, duvets, mattress toppers and more. 

    You can check out reviews of other Hypnia products we’ve tested:

    And we’ll let you know of any other Hypnia products we test in the future. 

  • Where can I buy the Hypnia All Seasons duvet?

    The Hypnia All Seasons duvet can be bought online directly from Hypnia UK. 

    Some other Hypnia duvets are also available on Amazon

  • Can you tell me more about Hypnia UK?

    Hypnia emerged in 2008, born from the insight that purchasing a mattress can be daunting, and they wanted to make this choice much easier. 

    Now, 14 years later, the team, operating from France, is rejuvenating the brand with a renewed range of products and a dedication to exceptional customer service. 

    The product range typically includes a variety of mattresses, pillows, and bedding accessories designed using innovative materials and technologies to enhance comfort and support.

  • What is an all-season duvet?

    An all-season duvet is designed to meet your sleep needs every season. 

    Often, all-season duvets have a 2-in-1 design (like the Hypnia duvet) so that they can be adjusted for the warmer and cooler weather. 

    This means one duvet layer has a lighter tog rating while the other is much thicker. 

    They can then be swapped or even combined together to create the perfect sleeping temperature

    Some other all-season duvets we’ve tested include the Simba Hybrid 3-in-1 duvet and the Brook + Wilde Cavendish duvet.

  • References


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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