What is the difference between a pillow-top and a euro-top mattress?

Both add a cushioning layer, but it is attached differently. A pillow-top is stitched onto the surface with a visible gap, giving a distinct, plush, separately puffed look. A euro-top is sewn flush under the cover so it sits even with the edges, creating a more uniform surface and slightly firmer, more supportive feel toward the perimeter. From this page's angle, the pillow-top reads softer and more pronounced; the euro-top reads tidier and more even.