Say a prayer before you sleep. Let His gracious love surround you as, without a care, you drift into sleep. This is your time now to revitalize your mind, body and soul. All the thoughts that directed your words and actions through the day can now be let go. Your mind will now roam the shadowy world of half recognized ideas and images.  

You are older now. The years have marched along with you in step some of the time. However, there were times when you were completely out of it. Where sleep in the past was an easy journey into rest, nowadays it is a time with interrupted periods of sleep. On a given night, you might be up for the bathroom only once. Other nights, it will be three or four times. And always in the morning, your sleep is the deepest and coming out of that is the biggest work of all.  

Still you come to Him for rest.

Come to me, all who labor and are heavy laden, and I will give you rest. Matthew 11:28 (ESV)