Was Sisera murdered in his sleep?

Was Sisera murdered in his sleep?
Yes, he was fast asleep.	No, he was awake and standing up.
Judges 4:21 Then Jael Heber's wife took a nail of the tent, and took an hammer in her hand, and went softly unto him, and smote the nail into his temples, and fastened it into the ground: for he was fast asleep and weary. So he died.	Judges 5:26-27 She put her hand to the nail ... and with the hammer she smote Sisera.... At her feet he bowed, he fell, he lay down: at her feet he bowed, he fell: where he bowed, there he fell down dead.