Twitching foot keeps me from sleeping at night

Has anyone had experience of a twitching foot at night. It twitches about every 20 seconds which doesn't allow for me to get to sleep. This goes on for hours. I take 300 MG of gabapentin at night but hesitate to take more due to side effects and I'm not sure that is the correct medication. I don't have pain with my Neuropathy... only the twitching and numb toes. Any suggestions?
Thanks