Drowsy

Drowsy, A.K.A. Experiment 360, is an illegal genetic experiment created by Jumba Jookiba. He is designed to put his victims to sleep. His one true place is putting insomniacs to sleep.

Bio
Experiment 360 was the 360th genetic experiment created by Jumba with Hämsterviel's funding. He was designed to use his sleep-inducing bleat to cause his victims to instantly enter a near-permanent sleep.

360 and the other first 624 experiments were deactivated and smuggled to Earth by Jumba during his mission to capture Experiment 626.

All of the experiment pods were released and scattered across the island of Kauai.

Lilo & Stitch: The Series
360's pod was one of the twelve experiment pods recovered by Lilo and Stitch in "Drowsy".

360 was activated by Stitch to put Lilo to sleep.

The next morning, 360 was able to escape the house, and was chased all over town by Jumba and Pleakley, putting everyone he encountered to sleep.

After a long chase, Gantu and Reuben were able to capture 360. However, when they attempted to use 360 to capture Regis Philbin, Lilo and Stitch were able to recapture 360, whom they named Drowsy.

In "Ploot", Drowsy was one of the second team of experiments (along with Finder and Babyfier ) formed to try and stop Ploot. However, Ploot was easily able to defeat them. In Drowsy's case, he couldn't defeat him because when he tried to "baa" him to sleep long enough to defeat him, his mouth was glugged by Ploot (505)'s gunk.

Leroy & Stitch
The first 624 experiments, including Drowsy, were round up by Leroy and taken to a stadium to be destroyed. However, Lilo, Stitch, Jumba, Pleakley, Reuben and Gantu arrived before the experiments could be destroyed.

It is unknown whether or not Drowsy participated in the following battle between the experiments and the Leroy clones.

However, the Leroys soon gained the upper hand in the battle, but were defeated when Lilo, Stitch, Reuben and several other experiments performed the song Aloha Oe, which caused the Leroy army to shut down due to the original Leroy's failsafe.