Credit Suisse acquired a 44% stake in First Boston in 1988. The investment bank acquired its shares held by the public and the company was taken private. In 1989, the junk bond market collapsed, leaving First Boston unable to redeem hundreds of millions it had lent for the leveraged buyout of Ohio Mattress Company, maker of Sealy mattresses, a deal that became known as "the burning bed". Credit Suisse bailed them out and acquired a controlling stake in 1990. Although such an arrangement was arguably illegal under the Glass Steagall Act, the Federal Reserve, the U.S. bank regulator, concluded that the integrity of the financial markets was better served by avoiding the bankruptcy of a significant investment bank like First Boston even though it meant a de facto merger of a commercial bank with an investment bank.