Nappien is a drug that causes sleep for those suffering sleep deprivation.


Homer begins to take Nappien after Maggie won't allow him to sleep - she keeps squeaking a toy.[1] The Talk Show Krusty is on is sponsored by Nappien.[2]

Bart uses Nappien (by spiking yoghurt with it) in an attempt to keep Lisa asleep so he can use her body (after he is attached to said body) in the "Dead and Shoulders" segment of Treehouse of Horror XXIV; in the same scene Homer mistakes Nappien for "mix-ins", pours it into his yoghurt and eats the concoction-only to fall asleep and fall down into the basement while walking a moment later.

Side Effects

When Homer took Nappien, he begun to do bizarre things while sleep walking.