California King sized mattress topper from Restoration Hardware's Cooling Down-Alternative Mattress Topper collection.  It's designed to wick away moisture and keep you cool and dry all night long.

Excellent, gently used condition. In partial original packaging, fabric still feels crisp and like-new.  There is a small spot towards the bottom of the pad (please see photos for details) but otherwise no stains, snags or flaws.