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Continue shoppingWhat does warmth class 3 mean for a duvet?
The warmth class indicates how warm a duvet is. In the Netherlands the scale runs from 1 to 4, with warmth class 1 being the warmest and warmth class 4 the coolest. Warmth class 3 sits right in the middle. This class feels fresher and lighter than a winter duvet, but offers more warmth than a true summer duvet. That’s why it’s a popular pick for the in-between seasons. Also keep in mind that thickness isn’t the only thing that matters. The filling, insulation and breathability together determine how a duvet feels. So a lightweight duvet can still fall into warmth class 3. If you find warmth class 3 too warm in summer, check out our Summer duvets.
Who is a warmth class 3 duvet right for?
For many sleepers, warmth class 3 is the best balance between warmth and airflow. This type of duvet suits bedrooms that are well heated or well insulated, and people who tend to get warm in bed. In spring and autumn this class is often just right too: cozy enough for comfortable sleep without getting stuffy. If you want one duvet for multiple seasons, warmth class 3 is often a safe and versatile choice. If you want extra flexibility throughout the year, take a look at our 4-season duvets.
Warmth class 2 or 3, or rather 3 or 4?
Warmth class 2 or 3
Choose warmth class 2 if you like to sleep extra warm or if your bedroom cools down a lot in winter. Choose warmth class 3 if you prefer a lighter, more breathable duvet that’s perfect for the in-between seasons and often also for year-round use.
Warmth class 3 or 4
If you’re hesitating between warmth class 3 and 4, warmth class 3 is clearly warmer. Warmth class 4 is mainly intended for warm summer nights. If you want more flexibility throughout the year, warmth class 3 is usually the nicer middle ground.
Down, cotton or bamboo duvet in warmth class 3?
The material largely determines how warmth class 3 feels. A down duvet in warmth class 3 often feels light and supple. A cotton duvet in warmth class 3 is great if you like a natural, breathable feel. A bamboo duvet in warmth class 3 is known for a fresh, airy sleep experience. So don’t just look at the number, but also at weight, breathability and care. With a coverless duvet from HappyBed you don’t need a separate cover and making the bed is quicker every day. Always wash according to the care label.
Frequently asked questions about warmth class 3 duvets
What is a warmth class 3 duvet?
A warmth class 3 duvet is a medium-warm choice that works well for spring, autumn and often for year-round use.
Can a warmth class 3 duvet be used all year round?
Yes, especially in a well-insulated bedroom or if you naturally sleep warm, warmth class 3 is often a great all-season solution.
Which duvet should you choose if you get cold easily?
If you get cold easily, warmth class 2 or 1 usually suits better. For example, check out our Warmth class 1 duvets. Warmth class 3 is better if you want a lighter, more breathable duvet.
What’s the difference between an all-season and a 4-season duvet?
An all-season duvet is a single duvet for multiple seasons. A 4-season duvet consists of two parts that you can use separately or together, so it’s easier to switch between summer and winter.
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Frequently asked questions
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Do you guys deliver on weekends too?
We also deliver on weekends, but keep in mind this only applies to orders placed on Thursday or Friday.
Can I still change my address?
Unfortunately, you can't change your address after placing your order, so in this case, always contact us.
What are you guys doing about sustainability?
We get how important sustainability is in today’s economy, so we always do our part. We’re super picky about which suppliers, partners, and materials we choose. Want to know exactly what we do and what steps we take to be sustainable? Check out our sustainability page for all the details. Together, we’re working towards a greener future.
How does the 30 day trial sleep work?
With us, it’s actually super simple. After your HappyBed products are delivered, you’ve got 30 days to try them out however you want. If they’re not quite your thing, you can easily return them.

