KKR , which has investments in household names such as asset manager Legg Mason ( LM.N : Quote , Profile , Research , Stock Buzz ) and mattress maker Sealy ( ZZ.N : Quote , Profile , Research , Stock Buzz ) , had been planning to merge with KKR Private Equity Investors ( KPE ) ( KKR.AS : Quote , Profile , Research , Stock Buzz ) and list on the New York Stock Exchange by year 's end , but that now will not happen until 2009 .