I bought my first one a few months ago, it is 15 pounds, I think. I have always liked a lot of weight on me when I sleep, but too many blankets cause me to overheat. This one works well, though I could probably go a bit heavier, I still have four other blankets on. One is a fleece blanket that I place between me and the weighted one. The stones in the weighted blanket have a cooling effect that I am sure I will appreciate in the summer. I got mine online for around $130 from a site called salt of the earth. Their blankets tend to focus the weight in the mid-upper part of the blanket. I think this feature would be good for those who don't move around a lot, unfortunately I do, so I am constantly having to reposition the blanket. For the most part, I believe it will be a good investment.
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Those who cannot tell what they desire or expect, still sigh and struggle with indefinite thoughts and vast wishes. - Emerson
Selfishness is not living as one wishes to live, it is asking others to live as one wishes to live. - Oscar Wilde