A duvet should not be chosen based solely on its volume or the appearance of the bed.
Fill weight, the type of filling, room temperature, the season and your preferred level of warmth directly influence your choice.
In this guide, we explain how to choose a duvet, when to opt for 150 g or 300 g, and what it means to find recycled PET in the composition of a bedding item.
Some people sleep better with a very lightweight layer, while others prefer a more enveloping bed, even when the temperature is not particularly low.
Therefore, there is no ideal fill weight for everyone.
Choosing a duvet means understanding the room’s conditions and, above all, how you feel temperature during the night.
A duvet that is too warm can become uncomfortable. A model that is too light may not provide the cosiness you are looking for.
The aim is to find a balance between lightness, thermal insulation, volume and ease of care.
This article is part of Gato Preto’s Bedroom & Sleep cluster, dedicated to creating a bedroom designed for rest and comfort.
In this guide, you will find
- What is a duvet insert
- What fill weight means
- When to choose a 150 g duvet
- When to choose a 300 g duvet
- How to take the room temperature into account
- What you should know about microfibre
- What recycled PET means in a duvet
- How to choose the right size
- How to combine the filling with the cover
- How to create a more enveloping bed
- Gato Preto DREAM duvets
- Why it is worth feeling the duvet in store
- How to care for your duvet
- Common mistakes
- Checklist before choosing
1. What is a duvet insert?
A duvet insert is designed to be used as the main layer of thermal comfort on the bed.
It can be used with a duvet cover, allowing you to change the bed’s appearance without replacing the filling.
It is different from a decorative duvet or a bedspread.
| Item | Main function |
|---|---|
| Duvet insert | Provide thermal comfort and volume to the bed. |
| Duvet cover | Enclose the filling and allow you to change the décor. |
| Bedspread | Add a decorative finishing layer. |
| Blanket | Add targeted comfort or an extra layer. |
In a bedroom designed for rest, each layer should have a clear purpose.
It is not necessary to use them all at the same time.
More layers do not automatically mean greater comfort.
Choose only what matches the room temperature, the season and the way you like to sleep.
2. What does a duvet’s fill weight mean?
The fill weight indicates the amount of filling used per area of the duvet.
It is usually presented in grams.
The DREAM range by Gato Preto currently has two main options: 150 g and 300 g.
The fill weight helps show the difference between a lighter solution and one with greater insulating capacity.
However, it should not be considered in isolation.
The room temperature, type of filling, and each person's thermal sensitivity also matter.
| Grammage | Overall feel | It may make sense for... |
|---|---|---|
| 150 g | Lighter | Mild climates, warmer rooms, or those who prefer less coverage. |
| 300 g | More enveloping and warm | Colder months or those looking for greater coziness. |
These guidelines help inform your choice, but personal preference remains important.
3. When should you choose a 150 g duvet?
A 150 g duvet is designed to provide a lighter layer.
It may be particularly suitable when the room temperature is mild or when you tend to feel hot during the night.
You may consider 150 g when
- The room maintains a relatively comfortable temperature.
- You are looking for a lightweight duvet.
- You tend to feel hot easily.
- You want to use the duvet during milder seasons.
- You prefer to complete the bed with other layers only when necessary.
The DREAM range currently includes 150 g versions in different sizes, including 140x220 cm and 240x220 cm.
The models are made from microfiber, Made in Portugal, and include materials sourced from recycled PET.
4. When should you choose a 300 g duvet?
The 300 g duvet offers more filling and a more enveloping feel.
It may make more sense during the colder months or for those who prefer a cozier feel when sleeping.
You may consider 300 g when
- The room tends to be colder.
- You are looking for greater thermal insulation.
- You like a bed with a more enveloping feel.
- You use fewer additional layers.
- You are mainly looking for an option for autumn and winter.
The DREAM range currently includes 300 g duvets in 140x220 cm and 240x220 cm sizes.
The 300 g model is also made from microfiber and includes fibers obtained from recycled PET.
💡 Do not choose based on the season alone. Two people may feel the temperature very differently in the same room. Always also consider your own thermal preference.
5. Consider the room's actual temperature
“Winter duvet” or “summer duvet” can be useful references, but they do not tell the whole story.
A well-insulated and heated room may require a different solution from a cooler room during the same season.
Before choosing, think about
- The room's usual temperature.
- Sun exposure.
- Quality of the insulation.
- Whether or not heating is used.
- Amount of bedding you use to sleep.
- Tendency to feel hot or cold during the night.
If you share the bed, there is another variable to consider.
Two people may have different thermal preferences.
In that case, the other layers of the bed can help create greater flexibility.
6. What should you know about microfiber duvets?
Microfiber is used in bedding because it combines lightness, softness, and easy maintenance.
In DREAM duvets, the filling is distributed throughout the duvet to create an even surface.
The Gato Preto collection is presented as a solution for comfort, lightness, and thermal insulation for everyday use.
The characteristics to consider include
- Soft feel.
- Low weight relative to volume.
- Easy maintenance.
- Ability to create a comfortable thermal layer.
- Possibility of using it with a duvet cover.
As with any textile, you should always check the composition and specific instructions for the product chosen.
7. What does recycled PET mean in a duvet?
When checking the composition of some DREAM duvets, you may find a reference to recycled PET.
It is natural for a question to arise:
“Does this mean I am sleeping with plastic bottles inside the duvet?”
No.
The recycled PET bottles are not placed directly in the product.
The material undergoes a recycling and transformation process until it becomes recycled polyester fibres intended for textile use.
These fibers can then be used in the duvet filling.
This process gives existing materials a new use and reduces the need to rely solely on virgin raw materials.
💡 Recycled PET does not mean “bottles inside the duvet”.
The PET is processed into recycled polyester textile fibers, which are then used in the filling.
The 150 g and 300 g DREAM duvets are presented by Gato Preto as microfiber products made from recycled PET and Made in Portugal.
What about certifications?
As with any textile item, always check the specific characteristics and certifications associated with the product reference you intend to buy.
When an applicable independent certification exists, it may provide relevant information about the materials and substances tested.
You should not assume that a certification applies to the entire collection without that specific indication on the product.
8. How do you choose the duvet size?
The size should be chosen according to the mattress, the bed, and the visual effect you want to create.
A duvet that is too small will have little side drop.
An oversized model can create excess fabric and make the bed less practical.
The DREAM range currently includes sizes 140x220 cm and 240x220 cm.
| DREAM size | Before choosing |
|---|---|
| 140x220 cm | Confirm the mattress width and length and the drop you want. |
| 240x220 cm | Confirm the bed size and whether you want greater side coverage. |
Do not choose solely based on the designation “single” or “double”.
Always measure the mattress before buying.
9. How do you combine a duvet insert with its cover?
The cover allows you to separate the thermal function from the décor.
The filling can remain the same while you change colors, patterns, and textures over time.
Confirm measurement compatibility
The cover should match the size of the filling.
A significant difference between the two pieces can cause the filling to bunch up or be distributed less evenly.
Also consider the feel
The cover influences the bed's outer feel.
Consider the material, maintenance, and how it relates to the sheets.
Use décor to your advantage for flexibility
A neutral cover creates an easy-to-coordinate base.
An option with colour or pattern can transform the bedroom without changing the mattress, duvet or remaining furniture.
To develop this approach further, see How to transform your home décor using only textiles.
10. How to use a duvet to create a hotel-style bed
A hotel bed often looks voluminous, but the aim should not be to create volume just for the photograph.
The duvet should remain suitable for the temperature and daily use.
Start with the right filling
Choose 150 g or 300 g according to the room's actual conditions.
Then work on the presentation
You can use a well-presented cover, fold the top part of the duvet slightly or complete the foot of the bed with a bedspread or blanket.
Avoid too many layers
A comfortable bed should remain simple to use.
If you need to remove several items every night before going to bed, the arrangement may be too complex.
💡 See the complete guide How to create a hotel-style bedroom at home to combine mattress, mattress topper, pillows, duvet, lighting and organisation.
11. Gato Preto DREAM duvets
The Gato Preto DREAM duvets collection currently includes four products.
The range combines two weights and two sizes:
| Grammage | Available sizes | Profile |
|---|---|---|
| 150 g | 140x220 cm and 240x220 cm | Lighter, for mild temperatures or those who prefer less insulation. |
| 300 g | 140x220 cm and 240x220 cm | More warmth and cosiness, for lower temperatures or those who prefer more heat. |
The four models are identified as Made in Portugal.
DREAM products use microfibre, and the range's current communication highlights the use of fibres made from recycled PET.
12. Some choices are worth feeling before deciding
Grammage helps compare duvets, but it does not fully convey what you will feel when you pick up the item.
Volume, feel and lightness are much more intuitive when you can try the textile.
At Gato Preto physical stores, you can feel different textiles, pillows and duvets and compare sleep solutions before deciding.
In store, you can
- Compare the feel of a lighter or more enveloping duvet.
- Feel the touch of the textiles.
- Discover different sleeping pillows.
- Try out mattresses.
- Discover the DREAM mattress toppers, available in physical stores.
- Understand how different layers can work together.
You can visit Gato Preto at UBBO, MAR Shopping Matosinhos, Almada Forum, Freeport or Palácio do Gelo, in Viseu.
Comfort is also chosen by touch.
The technical specifications help narrow down the options. Feeling the volume, texture, and weight of a textile helps you understand which one best matches your preferences.
13. How to care for a filled duvet?
Proper care helps preserve the distribution of the filling and the item's characteristics.
Always follow the label's specific instructions.
Check the washing temperature
For example, the DREAM 150 g 240x220 cm product indicates machine washing at up to 30 °C.
You should not assume that all products have exactly the same care requirements without checking the product label.
Ensure it dries completely
Before using or storing the duvet again, make sure it is completely dry.
Air it regularly
When changing the bed linen, you can leave the duvet and remaining layers to air for a while.
Store it properly out of season
If you do not use the duvet for several months, follow the storage recommendations and keep it in a dry place.
14. Common mistakes when choosing a duvet
Choosing 300 g just because it is winter
The room temperature and how you feel heat are just as important as the season.
Choosing 150 g just because it seems lighter
Make sure the insulation level is suitable for the intended use.
Buying based on appearance
Visual volume should not be the only criterion.
Not measuring the bed
Always confirm the mattress dimensions and the drop effect you want.
Confusing a filled duvet with a decorative duvet
One is designed primarily for thermal comfort. The other may have a more pronounced visual function.
Assuming that recycled PET means raw plastic inside
The material is processed and transformed into textile fibres before being used as filling.
Ignoring care instructions
Check the instructions before washing or drying.
15. Checklist for choosing the right duvet
Before buying
- Confirm the mattress size.
- Assess the room's usual temperature.
- Consider whether you tend to feel hot or cold.
- Choose between a lighter or more enveloping feel.
- Decide which season you intend to use the duvet in.
When comparing models
- Check the fill weight.
- Check the composition.
- Confirm the size.
- Read the care instructions.
- Check information about recycled materials, where applicable.
- Consider specific certifications, where indicated.
To complete the bed
- Choose a compatible-size cover.
- Combine it with suitable sheets.
- Avoid excessive layering.
- Review your sleeping pillows.
- Consider a mattress topper only when the base is still suitable.
Frequently asked questions about filled duvets
What is the difference between a 150 g and a 300 g duvet?
The 150 g model has less filling and provides a lighter feel.
The 300 g duvet offers greater thermal insulation and a more enveloping experience.
Is a 300 g duvet always better for winter?
Not necessarily.
The choice depends on the room temperature, the home's insulation, and your own sensitivity to the cold.
Can the 150 g duvet be used all year round?
It can work during different seasons in mild rooms or for people who prefer lighter coverage.
Suitability always depends on the actual conditions of use.
Is it safe to sleep with a duvet made from fibres sourced from recycled plastic bottles?
Recycled PET bottles are not used directly in the duvet.
The material undergoes a recycling and transformation process until it becomes recycled polyester fibres intended for textile use.
These fibres can then be used to fill the product, allowing existing materials to be reused and reducing the use of virgin raw materials.
As with any textile product, always check the composition, characteristics, and specific certifications of the reference you intend to buy.
Does recycled PET mean that there are pieces of plastic inside the duvet?
No.
The PET is transformed into textile fibres before being used as filling.
Are DREAM duvets Made in Portugal?
Yes. The four references currently presented in the filled duvet collection are identified as Made in Portugal.
What sizes are available for DREAM duvets?
The current collection includes 140x220 cm and 240x220 cm, in both 150 g and 300 g filling weights.
Can I try the duvets in store?
You can visit a Gato Preto physical store to feel the textiles and explore different sleep solutions before choosing.
Continue creating a bedroom designed for rest
The duvet is one of the layers that defines how the bed feels, but it should work together with the mattress, pillow, mattress topper, and sheets.
Choose the right comfort for your bed
A good duvet is not necessarily the heaviest or most voluminous.
It is the one that matches the room temperature and the feeling you are looking for when you go to bed.
Start with the filling weight, check the size, and review the composition and care instructions before deciding.
Then, combine the filling with the remaining layers to create a comfortable, practical bed adapted to you.
Discover Gato Preto’s DREAM filled duvets, made of microfibre, Made in Portugal, and available in 150 g and 300 g versions.
Discover filled duvets →If you prefer to feel the volume and texture before deciding, visit one of Gato Preto’s physical stores at UBBO, MAR Shopping Matosinhos, Almada Forum, Freeport, or Palácio do Gelo in Viseu.
Because a comfortable bed is not the one with the most layers. It is the one where each layer has been chosen to make rest simpler, more pleasant, and suited to the person sleeping in it.
