Does this mattress have good edge support for couples?

Yes, edge support is excellent at 9.4 out of 10, even with the plush surface, thanks to a ventilated foam-encased coil border. That keeps the full width usable to the seam for sitting or sleeping near the edge. Motion isolation is good at 7.7 out of 10, because the pocketed coils localize movement, though the thin comfort layer absorbs slightly less surface motion than the deep memory foam in higher tiers.

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