Here is a simple bedtime prayer that you can use as a guide:
Dear God,
As I lay down to sleep, I thank you for this day and for all the blessings you have given me. I pray for your protection and guidance as I rest. Please watch over me and those I love, and keep us safe from harm.
I ask for your forgiveness for any wrongs I have done and for the strength to do better tomorrow. Please help me to trust in your plan for my life and to find peace in your love.
Thank you for being with me always. I pray in your holy name, Amen.
You can use this prayer as it is, or you can personalize it by adding your own specific requests or thoughts. The important thing is to communicate with God in a way that is meaningful and sincere to you.