Related Clues:
- Serta rival
- Serta competitor
- Retirement option
- Serta alternative
- Their product may be king-sized
- Company whose workers may lay down on the job
- Mattress giant
- Stearns & Foster competitor
- Brand to sleep on
- Company known for its Counting Sheep ads
- Its New York Stock Exchange symbol is "ZZ"
- Big name in mattresses
- Perfect Day maker
- King maker
- Brand in the bedroom