Online mattress retailer Casper IPO to raise $182.4 million <!-- no image --> <div>Casper Sleep Inc, the online mattress retailer whose investors include actor Leonardo DiCaprio and rapper 50 Cent, said on Monday it aims to raise up to $182.4 million in its U.S. listing.<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=0n17xQyrNSY:hl35irNIcTc:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=0n17xQyrNSY:hl35irNIcTc:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=0n17xQyrNSY:hl35irNIcTc:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=0n17xQyrNSY:hl35irNIcTc:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=0n17xQyrNSY:hl35irNIcTc:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/0n17xQyrNSY" height="1" width="1" alt=""></div> Posted by Reuters