If you're buying a new mattress for the first time in a while, you might not be aware of motion isolation; it's likely you're focusing on whether the mattress feels comfortable and offers the right support. But motion isolation is an important term to familiarize yourself with, particularly if you share a bed.
Good motion isolation means that a mattress can absorb movements and stop them transferring across the surface of the bed, which is why co-sleepers in particular benefit from it. We've tested the motion isolation of over a hundred beds while finding the best mattresses you can buy online and during our testing, it's often the all-foam beds that offer the best motion control.
