CHICAGO (CBS) — Three daycare workers have been charged with child endangerment, after they allegedly admitted giving gummy bears laced with Melatonin to a class of 2-year-olds to get them to calm down for nap time.

“This is just a horrible case of bad judgement,” Des Plaines Police Chief William Kushner said.

READ MORE: Ald. Carrie Austin Thanks City Council, Mayor For Support After Her Collapse At December Meeting

Des Plaines Police said officers were called to the Kiddie Junction Daycare Center at 1619 E. Oakton St. on Friday afternoon.

Child Drug Overdoses Linked To Laced Gummy Bears

A manager there told police one of the teachers had been distributing gummy bears laced with melatonin to her class of 2-year-olds without the parents’ authorization. Police said there were four gummy bears left in a bottle that contained 120.

Jessica Heyse, Kristen Lauletta, and Ashley Helenfbein (left to right) were charged with giving gummy bears laced with melatonin to 2-year-olds at the Kiddie Junction Daycare Center in Des Plaines on March 2, 2018. (Credit: Des Plaines Police)

“Allegedly, this was done in an effort to calm them down before nap time,” Des Plaines Police said in a statement on Monday.

READ MORE: Charges To Be Filed Soon In Connection With Shooting Death Of 8-Year-Old Melissa Ortega

Three teachers were taken into custody, and during questioning, they allegedly admitted to giving the children the laced gummy bears. Police said the women didn’t think what they did was inappropriate, because melatonin is an over-the-counter sleep aid.

Police said the parents of every child at the daycare were notified about what happened

The women, 32-year-old Kristen Lauletta, 19-year-old Jessica Heyse, and 25-year-old Ashley Helfenbein, each were charged with two counts of child endangerment and two counts of battery. The daycare center has had no prior violations.

All three were due to appear in court on April 4 at the Skokie Courthouse.

“Fortunately, no child was seriously injured that we know of at this point. It’s limited to the one classroom,’ said Kushner.

MORE NEWS: U.S. Supreme Court Justice Stephen Breyer To Retire

Police say the daycare center is cooperating. DCFS is conducting their own investigation.