This is a two-duvet system from New Zealand maker Eiderdown: a lighter 50% goose down duvet for summer and a warmer 80% goose down duvet for autumn and early spring, joined with domes into one winter duvet. The summer layer has 550 fill power and the autumn layer 720, both wrapped in 400 thread count cotton sateen with baffled box construction to keep the down evenly spread. It suits sleepers who want one bedding set that adapts across the year rather than stacking separate duvets. Against single-season down duvets it offers more flexibility, but the two-layer build is heavier and bulkier than a plain summer quilt.
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Rated 5 out of 5 across 82 ratings, buyers are consistently positive about the four-seasons system. They highlight the warmth of the combined duvets in winter and the lightness of the summer layer.
This duvet is made up of two duvets. The Autumn duvet is filled with 80% Hungarian goose down, and the Summer duvet is filled with 50% Hungarian goose down. Use them separately in warmer months, or clip them together as a dome for winter.
Both duvets use baffled box construction. The cover is 100% cotton sateen with a 400 thread count. The sateen weave gives a soft, lustrous surface with a drape, and the casing is about 20% lighter than typical 233-290 thread count fabric. The cover is treated with Sanitized® Mintactiv, which uses peppermint to protect against dust mites, allergies and odor.
The down is Hungarian goose down and is certified to the Responsible Down Standard. No live plucking is used. A QR code supplied with the product shows where in Hungary the down came from.
