Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Comfortable Slumberwraps Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Comfortable Slumberwraps suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Transmog Sets
Comfortable Slumberwraps is part of the transmog set Depraved Beguiler's Visage (Priest, Mage and Warlock only). The other 16 pieces:
Blizzard numbers items as they are created, so the named items next to ID 184131 (184126 to 184136) were usually added in the same batch as Comfortable Slumberwraps: the same quest line, zone, vendor or reward set.