Mattress Firm confidentially files for potential IPO

Mattress Firm Group Inc. has taken the next step in exploring an initial public offering.

The Houston-based retailer announced Sept. 20 that it confidentially filed a draft registration statement on Form S-1 with the U.S. Securities and Exchange Commission.

However, the company noted that the SEC has to complete its review process before an offering can proceed. Also, the number of shares of common stock potentially to be offered and the price range for any such offering would still have to be…