Deletion of US-Mattress

Comment: there article has been here for a couple of years, and no independent sources have been added.  I searched Google and could not find one example of coverage, other than selling and review sites; the Top 500 retailer site (which may or may not be a quality source as it sells reports on companies) no longer lists it, removing even that tenuous claim.  As such, it fails 
Stance: delete
Cited policy: Wikipedia:Notability (WP:COMPANY)