I have one that is 13 lbs and I love it! It makes me feel very safe and secure. I have always liked heavy blankets and such so figured I'd try it. They are mostly marketed towards people with autism or similar but I think they could help many types of people. I Sleep with it most nights. I don't want to risk damaging it in my washer but I mostly use it on top of many other blankets so it doesn't get real dirty. I have found it is pretty warm but I am always cold so I have a heavy top quilt and other blankets as well. I use it in the summer months but if it is warm I will fold it and jut put it over part of my body. They are pricey but I wholeheartedly believe they are worth the investment