4.5 Tog Soft Hollowfibre Duvet

For winter months, a duvet with a higher tog rating is recommended to keep you warm during colder nights. A tog rating of 10.5 or above is ideal for winter use. Read more in our winter duvet guide.

A "tog" is a unit of measurement that indicates a duvet's thermal insulation, or its ability to retain heat. The higher the tog rating, the warmer the duvet will be. Tog ratings typically range from 1 (lightweight and cool) to 15 (very warm). Choosing the appropriate tog rating depends on personal preference and seasonal temperatures.

Hollowfibre is a synthetic material commonly used as a duvet filling. It consists of fine, hollow strands of polyester that trap air, providing insulation and warmth. Hollowfibre duvets are known for being durable, hypoallergenic, and easy to care for, making them a popular choice for many sleepers.

Yes, hollowfibre is often considered anti-allergy because it is a synthetic material that resists common allergens such as dust mites and mold. Unlike natural fillings like feather or down, hollowfibre does not trap allergens as easily, making it a good choice for people with allergies or asthma.

In contrast, during the summer, a lighter duvet with a lower tog rating is preferable to prevent overheating. Opt for a duvet with a tog rating of up to 10.5 to stay comfortable on warmer nights.