I think mine was worth every penny (and I have several. One 22 lb on my bed, a 10 lb one for travel/hospitalizations and an 8 lb "wrap" that I rarely use but is good when I do use it (I typically just crawl in bed under the heavy one when I should use it. I bought it for travel/hospital but it isn't wide enough to cover me and doesn't work as well).

The pressure of the blanket triggers receptors in your cells that tell your body exactly where every part of your body is and that makes you feel safe and calm. That's the semi-scientific explanation (I'm an OT and used them clinically before I bought one) but mostly it feels like a big hug.

It's hard to get enough weight to really benefit from piling on blankets (I in fact pile on a lot on top of my 22 lbs). You generally want about 10% of your body weight up to 20some lbs max (22 seems to be about the top limit).

I'm operating on almost no sleep so please ask me if I haven't answered something you wanted to know.