Fix Sagging Mattress: Efficiently restore comfort and support to sinking beds in just minutes with this sagging mattress support pad. Save on the cost of a new mattress by reinforcing worn areas, smoothing out dips, and transforming your sleep for a more restful, aligned night's sleep. Flat Top Trapezoidal Design: Engineered with a flat top and trapezoidal profile, this insert offers superior anti-deformation and compressive strength. Simply place it under your mattress in the problem area to reinforce weak spots, reduce motion transfer, and bring your mattress back to a stable, even feel. High Density Foam Construction: Crafted from 32D high density foam with firm support, this sagging mattress support is built to resist long-term compression and collapse. The high rebound core maintains its shape over time, boosting mattress durability while continually helping correct sagging and soft zones. Perfectly Sized Targeted Support: Measuring 47 x 25 x 2 inches, this insert pad fits discreetly beneath most mattresses without creating bulges or ridges. Its size is ideal for targeting specific sagging areas such as the center or edge of the bed, delivering focused reinforcement where your mattress needs it most. Packaging & Expansion Instructions: The mattress firming pad arrives vacuum-compressed for convenient shipping and storage. Allow 24-48 hours after unpacking for full expansion before use, or gently the process with a hair dryer on low heat so it can offer optimal, even support to your sagging mattress. Color: Black Material: Sponge Package Contents: 1* sponge pad Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.