O heavenly Father, you give your children sleep for the
refreshing of soul and body: Grant me this gift, I pray; keep
me in that perfect peace which you have promised to those
whose minds are fixed on you; and give me such a sense of
your presence, that in the hours of silence I may enjoy the
blessed assurance of your love; through Jesus Christ our
Lord. Amen.
-Book of Common Prayer, 1979, pg 461