you could also try Bioforce Valerian-Hops from a health shop, you add some to water/juice/milk and take half hour before bedtime.
I used it during pregnancy, you know when you're up all night at the toilet and then can't get back to sleep, worked everytime i used it.
I've used it during bf with both my babies, when they started to sleep longer at night and i was ling wide awake! again I found it always worked.
It helps your mind and body relax and switch off. it helps you to get the right amount of dream sleep and deep sleep.
We also give it to our baby or toddler if they are having trouble sleeping, eg when teething.
I also use a drop of lavender essential oil on pillow.