Choosing a duvet: warmth and construction
A commercial buying guide introduces duvet choices, including warmth. The article separately explains how to read a TOG rating when it appears on the label; the video cannot guarantee comfort for everyone.
By Land of Beds · Video language: English
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Heat rating is not weight
The John Lewis guide separates the TOG rating from weight which also depends on the filling. Therefore two blankets of similar weight do not necessarily have the same insulation, and a light blanket is not necessarily cold.
If there is no rating that allows you to compare the blankets, ask for a detailed description of the product. Do not invent a conversion between grams and TOG or deduce a number from a picture of a puffy blanket.
Down, feathers and synthetic are not the same specification
For natural filling, read the declared composition and the ratio between its components. In synthetic filling, look for the name of the material and not just "down-like". The shell and the division into cells are additional details worth checking, along with the filling.
For those who avoid animal products, the source of the filling is an obvious consideration. For those who need frequent home laundry, care instructions and machine capacity are especially important. Do not conclude that synthetic is always allowed in the wash or that natural always requires dry cleaning.
For more information on the subject: Choosing blankets and pillows for everyday use.
How to choose duvet warmth for the season in Israel
Think about the room you sleep in and personal preference, not just about the month. A heated and insulated room and a cold room may have different needs in the same season. Seasonal ranges published by a brand abroad are not an automatic recommendation for every home in Israel.
You can compare to the product you already have: do you want less insulation, less weight or a different size? These are three different requests. Write down what's bothering you to choose a targeted change.
duvet cover, washing and storage
Measure your duvet and choose a cover that fits it. A cover does not determine the duvet’s dimensions, and names such as Queen cannot replace measurements. Before ordering, plan storage for the duvet when it is out of season.
For a product that is allowed to be washed at home, check that the machine is suitable and that there is a way to dry it according to the instructions. Do not cram a large blanket into an inappropriate device. The guide refers to adults; Duvets for adults are not a recommendation for sleeping equipment for a baby.
How to compare duvets with different specifications
One blanket may display a TOG rating, and another may only display fill weight. There is no general conversion formula that allows you to convert weight to insulation rating. Ask for information on the structure of the blanket, its dimensions and the manufacturer's recommendation for use, and keep the missing data as a lack of information and not as an automatic low score.
If a warmth rating is given, check that it applies to the model and size you are considering. Do not choose solely from outdoor weather: a heated winter bedroom and an air-conditioned summer bedroom can differ from seasonal expectations. Two people in the same room can also prefer different warmth levels.
Two blankets that connect: what to check in the specifications?
In a seasonal blanket system, check what is included, how the parts connect and what the manufacturer indicates about each part and about the combination. Do not connect rating numbers or infer the performance of the combination without appropriate information from the manufacturer. Also make sure that the duvet cover is suitable for volume and size in the situation in which you will use it.
Consider where you will store an unused layer and how each part is cleaned. An all-season system can help you change warmth during the year, but awkward fastenings or limited storage may make it impractical. Assess everyday handling alongside the specifications on the packaging.
Comparing fill weight: why duvet dimensions matter
Let's say that two blankets say "filling 1,000 grams". One measuring 150 x 200 cm, which means an area of 3 square meters, and the other measuring 200 x 220 cm, meaning 4.4 square meters. In this example, the total weight of the filling is the same, but it is distributed over a different area. If it is indeed the weight of the filling, we get approximately 333 and 227 grams per square meter. If the figure also includes the casing, the calculation does not describe the filling density.
Even after the calculation, we have no TOG rating and no basis to determine which blanket is warmer: the type of filling, the structure and the test data are still missing. The example is intended to show why total weight on the package is not sufficient for comparison. Ask for data for the same measure and in the same unit, and leave missing information as an open question.
A practical comparison before choosing
| Specification | What does it help to compare? | What does he not prove? |
|---|---|---|
| TOG | Reported thermal insulation | weight or customization |
| weight | How much does the product or filling weigh according to the definition | Uniform heat rating between fillings |
| Filling composition | Source and type of material | Permission to wash or protection against allergies |
| Dimensions | Suitable for duvet cover and use | Matching by size name only |
Frequently asked questions
Does a higher TOG mean a better blanket?
No. A higher TOG indicates more thermal insulation. The right choice depends on room conditions and your warmth preference.
Is synthetic filling suitable for every allergy?
This cannot be deduced from the type of filling alone. In a diagnosed allergy, the cause and the product are examined with appropriate guidance.
Which TOG is suitable for the entire winter in Israel?
There is not one number for all houses. Room temperature, heating and personal preference change the need.
Sources and scope
Source check: September 15, 2026. The information was checked against the sources listed here. The selection tips help you compare options; they are not based on hands-on product tests by MyViro.
By MyViro.
The content explains textile characteristics and is not the result of a product test in a laboratory. How we prepare our guides
Illustrative photos on this page were created with AI.
