You often hear about sleepers who wish that their mattress was softer. But a mattress that's too soft is also an issue for some sleepers. Whatever fuels your desire for a firmer mattress, it is not an issue you should take lightly. You spend a third of your life on your mattress, and trying to ...The Secret to Making a Soft Mattress Firmer Read More »The post The Secret to Making a Soft Mattress Firmer appeared first on Insider Living.