The Napsack item, an item whose blueprint is dropped from Misery Toadstool, puts mobs to sleep, however the panflute has more uses ( 10 uses, 45 if deconstructed)
The Napsacks however yield only 4 and 19 when deconstructed and crafted again.
I believe the Napsack recipe should yield more napsacks ( 8 or 9) so that it can get on par with the panflute.