First of all, thank you so much for playing the game and for verifing Sleepless Nightmare. Like other stories, it helps me know that it's not impossible (and that the game is complete).
Regarding "showing more gluttony" that's exactly what I'm trying to do for a future update: different artwork for each night's ending (including the Challenges). That way, you'd have a better reward than just a picture of an alarm clock, lol.