I agree with the previous poster regarding good sleep hygene, which means going to bed and getting up at the same time every day and banning electronic devices from the bedroom. Many people have a quiet time, usually an hour, before going to bed. Daily exercise is also beneficial for mind health as well as physical health.

It's easy to get over anxious about sleep which turns into a vicious circle making sleep difficult. Also, don't be too concerned about the medication you are on as you can be weaned off it, the important thing is it is working. The mind has a massive role in sleep, being happy and as care free as possible aids sleep. I find thinking about good past events like holidays helps me.