Following a few rocky quarters, Mattress Firm (NASDAQ: MFRM) investors may finally be able to get a good night’s sleep after the owner of Sleepy’s announced that it will be acquired for $3.8 billion, including debt. Privately held Steinhoff, which has been described as “South Africa’s Ikea”, will be buying the firm for $64 per share, more than double its pre-announcement closing price of $29.74 per share.