Serta launched the first Perfect Sleeper® mattress in 1931 and it was the synonym of comfort and perfect sleep. Since then more mattresses were added to create the Perfect Sleeper® line which is considered to be the top mattress line of Serta. In 2010 Serta joined forces with the National Sleep Foundation (NSF) to redesign its Perfect Sleeper® mattresses to help solve the most common and difficult sleep problems: