Owner Contentment for Big Brands Serta Solid amount of positive reviews shows that owners are generally happy. 36% unhappy rating offers Serta room for improvement. Contentment for Serta 57% Happy "I love this bed and it's still the same after 5 years." "No more hip or neck pain, no more sleepless nights." "After seven months of two people sleeping on it, no signs of sag." 36% Unhappy "The first 10 months were okay... it started to break down on the one side I slept on." "...can't even flip the bed either." 7% Neutral "All and all we have been satisfied with the mattress."