From Pathfinder Core Rulebook, which isn't enabled.

Nightmare Vapor

ITEM 16

Price 1400 gp

Usage held in 1 hand

Bulk L

Category poison

Purportedly sourced from any number of outlandish locales, nightmare vapor is most often created by boiling the sweat collected from humanoids caught in the throes of terrible nightmares.

Activate Interact (Inhaled)

Saving Throw DC 36 Fortitude

Onset 1 round

Maximum Duration 6 rounds

Stage 1 Confused (1 round)

Stage 2 confused and Off-Guard (1 round)

Stage 3 confused, off-guard, and Stupefied 2 (1 round)

Pathfinder Core RulebookOGL