What Is the Highest Tog Duvet? UK Guide to the Warmest Duvet Togs
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There is no single highest duvet tog used by every UK manufacturer. Higher tog ratings provide greater thermal insulation, and while 13.5 and 15 tog are common winter choices, some duvets are available at 16 tog or higher.
At Stoftly, 16 tog is currently the highest tog in our duvet range. It provides more thermal insulation than 15 tog and may suit colder bedrooms or people who naturally prefer more warmth at night.
The highest tog is not automatically the best choice for everyone. Your bedroom temperature, heating, sleepwear and whether you naturally sleep hot or cold all affect which duvet feels comfortable. If you want a broader comparison of seasonal warmth levels, see our UK duvet tog guide.
13.5 vs 15 vs 16 tog: which is warmest?
16 tog provides more thermal insulation than 15 tog, and 15 tog provides more than 13.5 tog. The difference is about warmth retention, not duvet size, physical weight or overall quality.
| Tog | Warmth level | Consider it if... |
|---|---|---|
| 13.5 tog | Warm | You want a practical winter duvet for a cooler bedroom |
| 15 tog | Extra warm | Your bedroom gets particularly cold or you naturally feel the cold |
| 16 tog | Very high insulation | You want more insulation than 15 tog for a very cold bedroom or colder sleeping preference |
What is the warmest duvet tog?
The warmest duvet tog is simply the highest tog rating available from a particular manufacturer, but there is no single universal maximum across the UK market. Tog measures thermal insulation, so a higher number means the duvet is designed to retain more warmth.
Common winter ratings include 13.5 tog and 15 tog, while some ranges extend to 16 tog or higher. At Stoftly, our 16 Tog Duvet is currently the highest-insulation option in the range.
A higher tog is not automatically better. If your bedroom stays warm overnight or you tend to sleep hot, an extra-high tog may feel uncomfortable. The best choice is the level of insulation that keeps you comfortably warm without causing overheating.
Is 16 tog too warm?
A 16 tog duvet can feel too warm if your bedroom is well heated or you naturally sleep hot. It provides a high level of thermal insulation, so it is better suited to colder sleeping conditions than to warm bedrooms.
A 16 tog duvet may be worth considering if your bedroom becomes particularly cold overnight, your home retains less heat, or you generally prefer more warmth in bed. If you often wake feeling hot or throw the duvet off during the night, a lower tog is likely to be more comfortable.
If you are deciding between the two highest options in the Stoftly range, compare our 15 Tog Duvets with the 16 Tog Duvet.
15 tog vs 16 tog: which should you choose?
Choose 15 tog if you want a very warm winter duvet, but consider 16 tog if you want slightly more thermal insulation for a particularly cold bedroom. The difference is modest, so the better choice depends on how cold your room gets and how warm you naturally sleep.
A 15 tog duvet may be enough if your bedroom is cold in winter but you do not usually struggle to stay warm in bed. A 16 tog duvet may suit you better if you regularly feel cold at night or want the highest-insulation option currently available in the Stoftly range.
If you tend to overheat easily, neither option may be ideal. In that case, a lower rating such as 13.5 tog could be more comfortable.
What tog duvet is best for winter?
For winter, many UK sleepers compare 13.5, 15 and 16 tog depending on how cold the bedroom becomes overnight and how warm they naturally sleep.
A 13.5 tog duvet is a common winter choice for cooler bedrooms. A 15 tog duvet provides more insulation for colder conditions, while 16 tog provides a higher level of insulation for particularly cold bedrooms or people who prefer extra warmth.
There is no single best winter tog for every home. A well-heated bedroom may feel comfortable with a lower rating, while a colder or less well-insulated room may make a higher tog more suitable.
For a broader seasonal comparison, see our UK duvet tog guide.
Does a higher tog mean a thicker or heavier duvet?
No. A higher tog means greater thermal insulation, not necessarily a thicker, heavier or better-quality duvet.
The filling material and construction affect how a duvet feels, how much loft it has and how heavy it is. Two duvets can have similar tog ratings while feeling very different in weight and thickness.
When comparing warm winter duvets, use the tog rating to understand insulation, then consider the filling and construction separately if duvet weight or feel is important to you.
Compare extra-warm duvets at Stoftly
If you are choosing a duvet for colder nights, compare the warmth level that best matches your bedroom and sleeping preference.
- 13.5 Tog Duvets — a practical winter option for cooler bedrooms
- 15 Tog Duvets — extra warmth for colder bedrooms
- 16 Tog Duvet — the highest-insulation duvet currently available in the Stoftly range
You can also browse our winter duvet collection or read the UK duvet tog guide for a wider comparison of seasonal tog ratings.