Wool Mattress Topper: Is It Worth It, and How Thick?

A wool mattress topper adds a soft, dry layer, but thickness decides what it fixes. When it's worth it, how thick to go, and when it's a waste of money.

A wool mattress topper adds a soft, dry layer, but thickness decides what it fixes. When it's worth it, how thick to go, and when it's a waste of money.