Purple's GelFlex Grid® Mattresses Reduce Self-Reported Pain and Improves Sleep in Independent Studies by SleepScore Labs SALT LAKE CITY, Dec. 15, 2025 /PRNewswire/ -- Purple Innovation, Inc. ("Purple") (NASDAQ: PRPL), the inventor of the GelFlex Grid and a leader in sleep innovation, today announced results from two independent validation studies conducted by SleepScore Labs, Sleep.ai's research organization specializing in validated, real- world sleep measurement. The evaluation confirms that Purple mattre ...