SELECT A WARMTH LEVEL RIGHT FOR YOU
GSM refers to the Grams per Square Metre, referring to the weight or thickness of the quilt filling. The higher the gsm, the warmer the duvet.
This metric is used across all types of duvet inners (except for Feather & Down) to understand how warm your duvet inner would be.
- 150 to 250gsm is best for summer
- 300 to 350gsm is best for autumn and spring
- 400+gsm is best for winter
All-season duvets come with 2 quilts that clip together, to provide 3 options:
- 1 x 150 to 250gsm, best for summer
- 1 x 300 to 350gsm, best for autumn and spring
- Or by clipping the two together, you get a maximum gsm winter duvet.