I don't sleep well when my brain doesn't turn off and it is thinking about too many things when it should be at peace. That lack of peace/hope is linked to anxiety that arises from my lack of trust in what is to come in the future. I sleep great when I either don't have anything to worry about or when I choose to not worry and instead choose to trust that God will take care of things.
Lord, help me to trust you more, not only at night when I lay down but also during the day when I am overwhelmed with life.