It might help to be more descriptive of your issue, so people can give better advice.
Is it that you're finding it difficult to decide to lay down and call it a day? Is it that you lay down, but can't fall sleep? Is it that you do fall sleep, but you don't feel rested on waking up? Is it that you're waking multiple times during the night and can't get into deep sleep? Do you feel physically or mentally tired? etc.
Is it that you're finding it difficult to decide to lay down and call it a day? Is it that you lay down, but can't fall sleep? Is it that you do fall sleep, but you don't feel rested on waking up? Is it that you're waking multiple times during the night and can't get into deep sleep? Do you feel physically or mentally tired? etc.