I just started taken Metformin about a week ago. I am taking 500 mg once a day (I will work up to 3 times a day). One thing I am noticing is that I am having a hard time falling asleep. I used to always fall asleep quickly and now I can lay in bed for an hour or two before falling asleep. I also wake up in the middle of the night which I have never done before. I also hear my husband get up in the mornings and I can't fall back asleep where usually I don't hear him at all. Has anyone else dealt with this? I'm not sure if it's the Metformin or just a coincidence. Thanks!
Sorry I can't help. I was having a horrible time sleeping before I started the met. I was taking tylenol PM almost every night to get some sleep, but have since bought melatonin and that seems to help.
Metformin affecting Sleep??? 
