The heroine's gradual sinking into the mound in Samuel Beckett's Happy Days is one of the most baffling instances of human suffering in world literature. Yet Winnie's lighthearted concern with her imminent death is not only astonishing but also uniquely authentic. I adopt Heidegger's understanding of authenticity and present a Heideggerian reading of Beckett's play. Simultaneously, I address Beckett's unique counterpoint to suffering in Happy Days: the merriness characterizing authentic being. While a Heideggerian reading of Beckett helps to trace the development of authentic being, a Beckettian reading of Heidegger may help to see the delight (absurdly) accompanying it.