Your mattress may be too firm if you have these signs:
If you’re waking up with back, neck or shoulder pain, your mattress might be too firm.
If you have numbness or tingling in your arms and hands, your mattress is too firm for your preferred sleep position.
Your mattress might be too firm if you wake up feeling tired.
Your mattress is too firm if it doesn’t contour to your body at all when you get into bed.