NEW YORK, March 9, 2018 /PRNewswire/ -- Composer Max Richter will give the North American debut concert of SLEEP made possible by premiere sponsor Beautyrest® and secondary sponsor Philips on March 12 at SXSW in Austin, TX.Beautyrest mattresses will replace traditional concert seating so attendees can immerse themselves into the eight-hour overnight SLEEP experience. Doors open at 11pm on March 12 at Bass Hall and the NEW YORK, March 9, 2018 /PRNewswire/ -- Composer Max Richter will give the North American debut concert of SLEEP made possible by premiere sponsor Beautyrest® and secondary sponsor Philips on March 12 at SXSW in Austin, TX.Beautyrest mattresses will replace traditional concert seating so attendees can immerse themselves into the eight-hour overnight SLEEP experience. Doors open at 11pm on March 12 at Bass Hall and the