My nan's been having problems sleeping for while now, like she can't get to sleep and just lies there. I looked it up and apparently it could be a symptom of menopause. She's 70 and i'm really scared because isn't menopause supposed to occur when its nearly the end of your lifespan?

She's really stubborn and refuses to go to the doctors. Is there anything that I could buy in the pharmacy that could help her sleep?

(I'm 15 btw)