To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
We hoped by buying goose down that this sleeping bag would be warm, but unfortunately it wasn't. Temperate was 9 degrees, but I still needed to wear warm clothes to bed, otherwise I would have been too cold.