What is 'Tog' and What Does Tog Mean?

Simply, duvet tog numbers refer to the measurement of how effectively a duvet insulates heat.

The higher the tog number, the more effective the duvet is designed to keep and trap warmth.

Explaining Tog Numbers

 

Lightweight Duvets (3 to 7 tog):

These duvets are suitable for warmer climates or summer use.

They offer minimal insulation and are generally preferred by individuals who tend to feel hot while sleeping.

Mediumweight Duvets (9 to 10.5 tog):

These duvets provide moderate insulation and are suitable for spring and autumn use when temperatures are moderate. They are also commonly used year-round in milder climates

Heavyweight / Winter Duvets (12.5+):

These duvets offer the highest level of insulation and are suitable for colder winter months or individuals who prefer extra warmth during sleep.

All-Season Duvets:

Generally, these duvets consist of two individual duvets that can be used separately or combined to create a warmer duvet. They are ideal for individuals who want the flexibility to adjust their bedding's warmth throughout the year. Many of these duvets will make use of synthetic fibres.

What To Consider When Buying a Duvet

Remember, you may feel the warmth easier than others. Natural room temperature in your bedroom, body heat, and whether you tend to feel hot or cold during sleep can influence your choice of duvet tog rating.

Additionally, some duvets may incorporate other materials or technologies, such as the addition of down feathers or synthetic.

These factors can also impact the overall warmth provided by a duvet, even within the same tog rating.

Keep in mind that a thicker duvet isn’t necessarily warmer, as the effectiveness of the insulation will depend on the type of filling used.

Additionally, specific synthetic materials may be heavier than natural fibres but still provide a comparable level of insulation.

Therefore, the tog rating primarily indicates a duvet's ability to trap heat, rather than its weight or thickness.