How well does this mattress isolate motion for couples?

Well, scoring 8.4 on motion isolation, about half the disturbance the typical mattress passes across the surface. The 1000 individually pocketed coils each compress in isolation, so when a partner rolls over or climbs out, the movement stays local instead of rippling to your side. Above them, a full 2 inches of memory foam absorbs smaller motions right at the surface. For a light sleeper with a restless partner, that pairing keeps a 2 a.m. shift from waking you.