I applied online. The process took 5 days. I interviewed at Mattress Firm (Tampa, FL) in July 2011
Interview
First you submit an online application, which includes an SAT-like timed test. You will then receive a call from someone at their corporate office to gauge interest and provide a brief phone interview, who will then set up a real interview time and date with the district manager. Depending on who you interview with, the questions might vary, but they're really looking for personality and growth potential. They want someone who is going to be a good culture fit above all else.
Interview questions [1]
Question 1
"What would you say your greatest weakness is?" (Not uncommon, but be prepared to have an answer better than "I can't really think of one...!")