"sonata for the most part is great. i&#039;ve had insomnia for years now and nothing seemed to phase me. i&#039;m taking two 10mg and while it does work, i have those night where it doesn&#039;t do anything. can&#039;t even tell i took it. i usually take it around 10pm. i&#039;ve noticed if i have any food in my stomach it doesn&#039;t work or doesn&#039;t work as well. if i take it on an empty stomach it works great. with my schedule i sometimes can&#039;t  eat until around 8:30-9:00 pm so on those nights i usually don&#039;t even take it because i know it won&#039;t work. also, sometimes i wake up after about 4-5 hours of sleep and can&#039;t go back to sleep. then some nights i sleep all night. not sure if it&#039;s just me but it seems like sonata is very finicky."