Will this mattress keep me from feeling my partner move?

Yes, it handles a restless partner well, scoring 8.7 on motion isolation with peak transfer measured under 4 m/s2, below the typical hybrid. The 875 individually pocketed coils flex in isolation rather than moving as one connected unit, and the inch of memory on top absorbs the jolt where it lands. Motion dies out fast instead of rippling across the bed, so someone climbing in late does not wake the other side.