Here's how we solved the dilemma of needing to attach a bedskirt to our adjustable bed. It's not actually attached to the bed, but to the bed frame.
Pragmatic Adjustable Bed Frame Head and Foot, Multiple Sizes - Walmart.com
Mattress Split King Adjustable Bed Frame With Nightstand
The angled headboard of the TRYSIL queen bed frame allows you to sit comfortably when reading in bed.
Simple Queen Bed Frame? - by luckysawdust @ LumberJocks.com ~ woodworking community
TYSSEDAL Bed frame IKEA Adjustable bed sides allow you to use mattresses of different thicknesses.
Adjustable Bed Frame Instructions
Ikea Adjustable Bed Frame
I like the bookshelf idea to frame the bed to make an inlaid headboard with wall paper
Mattress For Adjustable Bed Frame