I purchased the medium classic duvet. Upon, opening up the bag, I was really impressed at the stitching, not only across, but length ways and diagonally! I was expecting a miracle I think! It promised from previous reviews great nights sleep, so on the first night, as usual I did not sleep to well, as to hot & it seemed to give off a strange smell, (not sure if this is because of the natural lanolin that is in wool) after a couple more nights, began to wonder if I had maybe I should have ordered the lighter weight, However over the last two nights it has been much colder & there has been frost in the mornings, bingo, no feet hanging out of bed trying to find a cooler patch, and although I did wake, I would drop straight off again. So should you be a person that has the heating on at night, of a certain age, I would advise to go for the lighter one! Although of a certain age, I do not have the heating on at night. So all in all am very pleased with my purchase