The Nightmare Before You Die

Bart: "I think I woke up from gum gum snoring" The spell targets creatures with the lowest current hit points and then you affect up to 24 hit points worth of creatures at which point the spell is exhausted. You also notice that there's another Valrosian with, uh, eyes that are also glowing. He's by the door. Could I cast sleep on him? Ooh, look at you. So go ahead and roll 5d8 to determine how many hit points and creatures it affects.