"i was prescribed gabapentin for anxiety and insomnia. i was diagnosed with severe obstructive sleep apnea and had a tough time getting used to my cpap and didn&#039;t sleep for several nights in a row. the first night i took the gabapentin i slept! and i&#039;ve slept every night since then. i take 800 mgs during the day and 800 mgs at night for 1600 total. i sleep between 7 and 9 hours every night now. my neurologist also told me that gabapentin increases slow wave sleep. before my cpap (and the gabapentin) i was getting no n3 slow wave sleep at all. so this drug is amazing for sleep, for me at least."