Albert Barnes Commentary 2 Kings 4:31

"And Gehazi passed on before them, and laid the staff upon the face of the child; but there was neither voice, nor hearing. Wherefore he returned to meet him, and told him, saying, The child is not awaked." — 2 Kings 4:31 (ASV)

There was neither voice nor hearing - Compare 1 Kings 18:29.

The child is not awakened - See 2 Kings 4:20. The euphemism by which death is spoken of as a sleep was already familiar to the Jews (see 1 Kings 1:21 note).