Somnambulist's Nightcap

 is a hat.

Obtaining

 * Crafted by a Tailor (Lv. 100) from
 * 42 Bestial Brockhard Claw
 * 39 Gluttonous Brockhard Tail
 * 24 Venomous Brockhard Scalpula
 * 11 Kolosso Claw
 * 7 Icy Brockhard Ear
 * 4 Pyrotechnic Brockhard Eye
 * 2 Venomous Brockhard Tail
 * 1 Kolosso Fabric