Mattress Helper Under Mattress Support - Fix Your Sagging Mattress With No Sag Firmer Solution - Single Side Coverage (K

LIFT SAGGING MATTRESS: Designed to lift old saggy mattress towards original firmer shape.
SLEEPING BACK SUPPORT: Supports back - pain relief by acting as a support board.
DURABLE HIGH-DENSITY FOAM: Fixes and firms sagging and soft mattresses.
MEDICAL DOCTORS APPROVED: Doctors love that Mattress Helper supports your back
MADE IN THE USA: Patented design proudly made in the United States of America.