Arm Sling APAA Can you add a mattress

Can you add a mattress pad on top of the mattress cover

Hand tighten only

Wear day after day even after repeated washings

Are there arrows on the cuff for proper positioning

Arm Sling APAA Can you add a mattress60 Day Guarantee View Details > Features MINIMIZE MOVEMENT AND REDUCE PAIN Stabilizes arm, shoulder, and rotator cuff when recovering from injury or surgery INTEGRATED THUMB LOOP Provides extra support and reduces fatigue REVERSIBLE SLING Worn on either arm and evenly distributes weight to reduce pain and pressure COMFORTABLE SHOULDER STRAP Easy one handed adjustment, padded, and contoured fit HOLD PERSONAL ITEMS Two interior mesh pockets allow you to