“In registering for the initial public offering, Casper failed to disclose that its profit margins were narrowing and that it was selling ‘a glut of old and outdated mattress inventory’ at clearance prices, according to the lawsuit, which was filed last week in federal court in New York and demands unspecified damages. Then, in April, Casper said it was working to “improve its cash position and business model,” the suit continues, ‘notwithstanding the fact that the company had raised more than $100 million in gross offering proceeds from the IPO’ less than three months earlier.” Bloomberg: Mattress Unicorn Casper Accused of Misleading Investors With IPO. Wow. If you can’t trust a mattress store, who can you trust…