Made for all year round natural comfort, both our lighter and warmer organic duvets are made by hand and filled with carded Merino sheep’s wool which is encased in 100% organic cotton. These materials have been specially selected to help regulate your temperature, allowing for a restful night's sleep. DETAILS Our lighter organic duvet is filled with 300g per square meter of carded Merino sheep's wool Our warmer organic duvet is filled with 500g per square meter of carded Merino sheep's wool Naturally hypoallergenic Merino wool duvets do not have a tog rating. It steadily maintains body temperature all year round, no matter the weather Functional corner loops that allow the duvet to be easily attached to the inside of our linen duvet covers to prevent slipping Learn more and discover why we think you will love our merino wool bedding. Piglet Merino Wool Duvet