I haven't found these to be effective on their own but one third of a sleep aid taken with half a co-codamol are guaranteed to give me a good night's sleep without leaving me drowsy the next day.
This is a repeat purchase of a product which we have found works very well.
Most of the time I need half a tablet only, taken about 1 hour before bed,
Expect 8 hours sleep so factor that in to your schedule!!