CONAN would never use a snooze button

While sleeping in a notorious guest house, CONAN's room is invaded by a cannibal looking to kill and eat him.

It was the stealthy opening of a door which awakened the Cimmerian. He did not awake as civilised men do, drowsy and drugged and stupid. He awoke instantly, with a clear mind, recognising the sound that had interrupted his sleep.

From, "Shadows in Zamboula"
Page 483 "The Complete Chronicles of CONAN"