I bought one to test it out. Youngest son said instead of waking up several times during the night, he slept through the night. On the nights he got up to go to the bathroom, he fell back asleep right away. He also slept more deeply and dreamed more vividly.

So, then I bought two more. One for oldest son and one for me. I noticed more restful and deeper sleep. Oldest son says he's been sleeping more soundly.

So for us these faraday beanies have been a win.