Wool naturally regulates body heat, keeping you cool in the summer and warm in the winter. Warm air collects in the gaps between woolen fibers during cooler weather to keep you warm while you're sleeping, and they absorb moisture to keep you less sweaty at night when it's hot. Feather mattress pads may retain too much body heat for comfortable sleep in warmer climates. Choose a wool mattress pad for optimal heat regulation and year-round use in most climates.
Feather mattress pads provide a thick layer of soft and fluffy down to soften a firm mattress or provide a cozier feel to the bed, but they don't give support. Wood mattress pads are less fluffy, but they provide another layer of softness and comfort to a firmer mattress. Wool pads do not add support for saggy or too soft mattresses. Choose a feather mattress pad instead of wool if you enjoy sleeping on a pillow-soft surface.
Wool mattress pads absorb moisture to help regulate body temperature, and they also work well for cribs and children's rooms to help prevent the inevitable accident from ruining an expensive mattress. Wool has natural antimicrobial qualities, so it can help prevent mold or mildew, which can cause health issues, especially in children. Feather mattress pads don't wick moisture and are not recommended for babies: They are often too fluffy for a crib. Choose wool mattress pads for cribs and young children's beds.
Machine wash most wool mattress pads, but let them air dry to prevent shrinkage. Read the care label; some wool mattress pads require dry cleaning. Shake thick wool pads occasionally for maximum fluffiness and comfort. Feather mattress pads need daily fluffing to prevent the down from becoming crushed, resulting in flat spots and a less-comfortable and less-effective pad. Many feather pads require dry cleaning. Choose a wool mattress pad for maximum durability and ease of care.