Is it good for couples and motion isolation?

Yes. Motion isolation scores 8.1, with peak movement landing low in its range. The thick gel-foam comfort layers absorb a partner's movement as it lands, while each pocketed coil responds on its own rather than passing the jolt across a connected grid. A partner turning over or getting up reaches you well softened. The plush surface lets motion linger about a second, but the energy crossing the bed stays low, reassuring for light sleepers.