An all-season duvet is designed to meet your sleep needs every season.
Often, all-season duvets have a 2-in-1 design (like the Hypnia duvet) so that they can be adjusted for the warmer and cooler weather.
This means one duvet layer has a lighter tog rating while the other is much thicker.
They can then be swapped or even combined together to create the perfect sleeping temperature.
Some other all-season duvets we’ve tested include the Simba Hybrid 3-in-1 duvet and the Brook + Wilde Cavendish duvet.