I just started using a grounding sheet three months ago, and I can say that it works. I had problems falling asleep - I often lay for hours and tossed and turned. At first, I was also skeptical, but I decided to try it. After a week, I noticed that I was falling asleep faster, and my sleep became deeper. I wake up in the morning with normal energy, although I used to feel exhausted. If you are interested, I found useful information and recommendations for choosing sheets here -
grounding sheets. The guys there share their experience and models that really work. Of course, it's not a "magic pill", but for me the difference is noticeable. I advise you to try it, it definitely won't make things worse.