Kingsdown mattresses generally receive mixed reviews and average ratings. The mattresses have a D grade on Sleep Like The Dead, with a 63 percent owner satisfaction rate, as of July 2015.
Kingsdown mattresses score 75 out of 100 on Viewpoints, where reviewers state that while the mattress is very soft, it's not worth the price, as the quality decreases quickly over time. The reviews gathered by Sleep Like The Dead support these claims, and the mattresses earn a durability grade of D+ as a result. Sleep Like The Dead cites that 22 percent of Kingsdown mattress owners report a loss of support and comfort in the first three years of use. The mattresses earn higher grades for motion isolation and low noise.