The staff at the end of the phone were very helpful and I appreciate this is a company that still allows customers to ring and speak to someone rather than insisting on email contact only. I ordered the Luxury Alpaca Organic Duvet All Season, size double, for our son. We tried it first one night before putting it on his bed. It was a fairly mild night in early October. I found it very comfortable to sleep under. I wasn't cold or too hot; just right in fact. I can't say what it would be like on a very cold night. I love the idea that sheep's wool is being used to good effect. The two duvets together are quite heavy and I find getting the duvet up into our son's cabin bed quite hard work. This is not a deal-breaker though. However, I do have a criticism, but I think this is something that could be improved. A few days after putting the duvet on the bed the two layers have come apart. (Another reviewer has mentioned the same problem). The poppers that are supposed to keep them together had come undone and both duvets had separated to opposite sides of the duvet cover. I had to take them out, reconnect them and re-stuff the cover. As they are heavy this is quite a task and a nuisance. I suspect this operation might need to be repeated a couple of times a week. I'm planning to try sewing some strips of velcro to the duvets to see if that will keep them together better.