She's tested a dozen mattresses ... 4.5 pounds per cubic foot of memory-foam-type foam (instead of the typical 3) and 2.5 pounds per cubic foot of base foam (instead of the typical 1.8).

The best memory foam mattresses relieve pressure, contour to your body and curb movement so you can sleep peacefully. While we’ve tested more than 100 all-foam beds over the years, there are ...

The updated version of Nectar’s Classic Memory ... mattress and measured the sinkage with a tape measure. We measured it at 1 inch (2.5cm), which is slightly tighter than your average all-foam ...