J.W. Childs Associates-backed Mattress Firm raised about $105.6 million in its IPO. The specialty bedding retailer sold about 5.6 million shares of common stock priced at $19 apiece, the higher end of its expected price range. Mattress Firm intends to use the net proceeds from the offering primarily to repay indebtedness and pay accrued management fees and interest. The company's stock rose during its debut on the NASDAQ under the symbol MFRM, closing up at $22.