Actually, Mat dies twice, and it wasn’t during his hanging on the tree. It was when Rand saved him with balefire, as confirmed by Amaresu in AMOL. ”I did die,” Mat said, rubbing at the scar on his neck. “Apparently that tree claimed me.” ”Not the tree, Gambler,” Hawking said, “Another moment, one that you cannot remember. It is fitting, as Lews Therin did save your life both times.” ”Remember him,” Amaresu snapped, “I have seen you murmur that you fear his madness, but all the while you forget that every breath you breathe — every step you take — comes at his forbearance. Your life is a gift from the Dragon Reborn. Twice over.”

Yes!