Sleeping Potion
Sleep Remedy
noun
Some kind of sleeping medicine? That's a sleeping potion!
眠り薬 is often found in storytelling contexts to refer to some kind of sleep-inducing concoction. But it can also be used as a less medical and more colloquial term for actual sleeping medication.
The reading is 眠い plus 薬 put together in one ... zz zzzzzZZZzz
Just remember that くすり turns into ぐすり here because of rendaku.
童話には、眠り薬を使って人を眠らせる話がよく出てきます。
Sleeping potions are often featured in fairy tales to make people fall asleep.
大変！眠り薬が入ったビンを無くしてしまったわ！
Oh no! I lost the bottle with the sleeping pills!
男はニヤリと笑って、ふところから眠り薬を取り出しました。
The man grinned and pulled out the sleeping drugs from his pocket.