What Does It Mean?
You are correct!
From our dictionary:
sop•o•rif•ic
(sop"u•rif'ik, sO"pu-),
—adj.
1. causing or tending to cause sleep.
2. pertaining to or characterized by sleep or sleepiness; sleepy; drowsy. —n.
something that causes sleep, as a medicine or drug.
(sop"u•rif'ik, sO"pu-),
—adj.
1. causing or tending to cause sleep.
2. pertaining to or characterized by sleep or sleepiness; sleepy; drowsy. —n.
something that causes sleep, as a medicine or drug.