We must build our faith by declaring the peace and protection that God has promised us. When we choose to believe those promises, we are prepared when the enemy attempts to thwart our peace by interrupting our sweet sleep, or trying to get us to succumb to fear based on the reports of the world. So, declare and believe the covering that God has prepared for us:

Psalm 91: 9If you say, “The Lord is my refuge,” and you make the Most High your dwelling, 10no harm will overtake you, no disaster will come near your tent.
11For he will command his angels concerning you to guard you in all your ways; 12they will lift you up in their hands, so that you will not strike your foot against a stone.
13You will tread on the lion and the cobra; you will trample the great lion and the serpent. 14“Because he loves me,” says the Lord, “I will rescue him; I will protect him, for he acknowledges my name.