“It’s usually caused by regular use, where the foam or filling loses ... or start budgeting for a replacement. There are plenty of ways to fix saggy couch cushions, and sometimes even prevent ...

A sleeper-sofa mattress upgrade: Milliard 4.5-inch Memory Foam Replacement Mattress It doesn ... flat for storage in the bed or beneath the cushions—and it beats the heck out of an old scrap ...