** Shares of home furnishing company Sleep Number SNBR.O plunges nearly 39% to $7.89 afternoon trading
** Co after-market hours on Wednesday posted Q4 net sales of $377 million compared with $429.52 million a year earlier
** SNBR also appointed Linda Findley as its new President and Chief Executive Officer, effective April 7
** Including session moves, stock is down 48.6% YTD