"i don&#039;t have trouble falling asleep, but if i happen to wake up between the hours of 2:00 am and 4:00 am, for some reason i have a hard time falling back asleep. i give myself about 10 minutes, and if i am still awake i take one capsule. seems like it works within 15 minutes and there is zero morning grogginess. it is a short acting medication so it really isn&#039;t designed to be taken right when you go to bed. sometimes i will take a sonata and then check my email while waiting for it to work----big mistake, as i write some very loopy, misspelled things which i have only the vaguest memory of doing. "