Exhausted.

Psalm 132:3-5 KJV

[3] Surely I will not come into the tabernacle of my house, nor go up into my bed;

[4] I will not give sleep to mine eyes, or slumber to mine eyelids,

[5] Until I find out a place for the LORD, an habitation for the mighty God of Jacob.

Judges 8:4 KJV

[4] And Gideon came to Jordan, and passed over, he, and the three hundred men that were with him, faint, yet pursuing them.

There is a time to rest.

Psalm 127:2B KJV

[2] he giveth his beloved sleep.

However, obedience to God must take priority over rest, even when you are exhausted. Being comfortable is the idol of many. God may cause you to be in situations that require you to choose between God and the comfort of rest.