thick down alternative comforter

...

The filler, or the duvet itself, determines the warmth and weight of your bedding. Down fillers provide exceptional warmth and softness but may not suit those with allergies. Synthetic fillers, like polyester, offer a more affordable alternative with comparable insulation properties Synthetic fillers, like polyester, offer a more affordable alternative with comparable insulation properties Synthetic fillers, like polyester, offer a more affordable alternative with comparable insulation properties Synthetic fillers, like polyester, offer a more affordable alternative with comparable insulation propertiesduvet cover and filler. Feather fillers provide a medium level of warmth and are generally more affordable than down.

...

Duvet fill weight is typically measured in grams per square meter (gsm) or ounces per square yard (oz/sq yd). It refers to the total weight of the filling material within the duvet, which directly correlates with the warmth and thickness of the bedding. A higher fill weight indicates a denser and heavier duvet, providing more insulation and warmth. Conversely, a lower fill weight suggests a lighter and less insulating duvet, suitable for warmer climates or personal preferences.

...