'Night watches' in the Bible

When I remember You on my bed,I meditate on You in the night watches,

My eyes anticipate the night watches,That I may meditate on Your word.

“Arise, cry aloud in the nightAt the beginning of the night watches;Pour out your heart like waterBefore the presence of the Lord;Lift up your hands to HimFor the life of your little onesWho are faint because of hungerAt the head of every street.”