We struggled for almost a year to find temperature comfort after purchasing a very expensive memory foam mattress. I looked high and low on the internet (U.S., England, Australia, New Zealand, Scotland, Canada) for information on wool and cotton bedding and ordered the cotton sheet set, duvet cover and wool-filled comforter. All of them exceed my expectations! The cover and sheets are perfectly thick, comfortable, NO PILLING and look great. I chose darker sheets and a lighter cover after reading a review that pet hair shows on a dark cover. Both the cover and sheets do wrinkle slightly but is not an issue for me. (My mom still irons her pillow cases, for that unwrinkled look.) The thickness of the comforter is great. We received it in October when the weather was still warmish and now it is below the teens at night and is still keeping us warm with the temp in the bedroom in the upper 50's, These things, in combination with a fleece wool mattress pad keep a regulated temperature with no more feeling hot on your back and cold on the top.