Memory foam mattress toppers are the most popular kind, and we found more user reviews for them than for any other type of topper. However, not that many earn high ratings from a large number of owners. Our Best Reviewed Serta Ultimate 4-inch Memory Foam Mattress Topper (Est. $180-$190) , made for Serta by Sleep Innovations, gets the best ratings overall.
Editors at SleepLikeTheDead.com, the leading site for research on sleep products, analyze more than 17,000 reviews for this mattress topper and find that 92 percent of owners are satisfied. This positive rating is confirmed by the 2,500-plus user posts at Buzzillions.com and Viewpoints.com. Owners say the mattress topper is very comfortable and supportive, and many report that it provides relief from pain. Users add that the Serta topper retains body heat, which some find to be a plus in the winter months. The primary complaint about this mattress pad is that it has an unpleasant odor when new, but most reviewers say it goes away within a few days.
If you tend to sleep hot, you might prefer the Linenspa Lucid Gel Memory Foam Mattress Topper ($110 - $200) that's infused with a gel designed to disperse heat and improve airflow. Owners generally agree at Amazon.com that this mattress topper doesn't make them too warm, and most initially find it very comfortable. However, a number of users complain that the foam compresses and loses its supportiveness very quickly. The Linenspa topper also gets more complaints about odor than the Serta Ultimate, with some reviewers saying the odor persists for weeks.
The least expensive memory foam model is the Memory Foam Solutions 3-Inch-Thick 4-Pound-Density Mattress Topper ($80 - $225) sold at Amazon.com. It has the same 92 percent overall approval rating as the Serta at SleepLikeTheDead.com, but that's based on far fewer user reviews. Posts at Amazon.com give this mattress topper high marks for comfort and pain relief, but owners are divided over the issue of odor. While some say there's little initial odor, others complain that the smell is literally sickening and never really dissipates. The pad also gets many durability complaints, with several users saying the foam disintegrates within a few months.
If you're concerned about the chemicals in memory foam, a natural latex topper might suit your needs better. Just one gets a large number of positive reviews: our Best Reviewed Select Luxury E.C.O. Latex Topper (Est. $230) sold at Overstock.com. Owners say this mattress topper is extremely comfortable, neither too soft nor too firm. Like memory foam models, however, the E.C.O. gets mixed feedback about its odor. Some users report no unpleasant odor at all; others complain that the smell is so strong they can't keep the topper in the house. We also found a few gripes about durability.