horizontalitis

N. - the inclination to fill up (‘inflame’) any flat, open surface; ‘clutterize’, or, the desire to lay down no matter the circumstances.

Afflicted with horizontalitis, she was headed for an appearance on Hoarders, as she could not keep any area of her home free of clutter.

He suffered from horizontalitis and took the phrase “laying down on the job” to a whole new level.