Adding a down mattress topper or feather bed to your sleeping surface is a luxurious way to soften your bed. Down mattress toppers are available in a variety of natural and hypo-allergenic goose down and feather combinations to meet sleeping softness and support preferences. Down mattress toppers add a layer of cushioning to your bed and can soften a too-firm coil or foam mattress. Down feather beds cradle the body and offer the sensation of sleeping on a large and very comfortable down pillow.