A comfort layer (16, 16a-16m) configured to overlay a core of a bedding or seating product (10, 10a), said comfort layer (16, 16a-16m) comprising: a matrix of interconnected pocketed mini coil springs (44, 44c, 44d, 56, 62, 46, 46c, 46d, 58, 66), each mini coil spring (26, 52, 60, 28, 54, 64) being contained within a pocket (36, 38), said pocket (36, 38) having a weld seam (30, 31, 74, 82, 88) at least partially around the pocket (36, 38) joining first and second pieces of fabric of the pocket (36, 38), wherein each weld seam (30, 31, 74, 82, 88) has multiple weld segments; characterised in said comfort layer (16, 16a-16m) having multiple tall sections (42, 42a-42h, 94), each of the tall sections (42, 42a-42h, 94) comprising multiple columns of pocketed mini coil springs (44, 44c, 44d, 56, 62), adjacent tall sections (42, 42a-42h, 94) being separated by at least one column of short pocketed mini coil springs (46, 46c, 46d, 58, 66), the pocketed mini coil springs (44, 44c, 44d, 56, 62) of each tall section (42, 42a-42h, 94) having an identical height (H3, H5) and the pocketed mini coil springs (46, 46c, 46d, 58, 66) of each short section (40, 40a, 40d, 96) having an identical height (H4, H6) less than the height (H3, H5) of the pocketed mini coil springs (44, 44c, 44d, 56, 62) of each tall section (42, 42a-42h, 94), and in that the mini coil springs (26, 52, 60) of each tall section (42, 42a, 42c) are identical and the mini coil springs (28, 54, 64) of each short section (40, 40a) are identical, the mini coil springs (26, 52, 60) of each tall section (42, 42a, 42c) having a smaller diameter than the diameter of the mini coil springs (28, 54, 64) of each short section (40, 40a). a matrix of interconnected pocketed mini coil springs (44, 44c, 44d, 56, 62, 46, 46c, 46d, 58, 66), each mini coil spring (26, 52, 60, 28, 54, 64) being contained within a pocket (36, 38), said pocket (36, 38) having a weld seam (30, 31, 74, 82, 88) at least partially around the pocket (36, 38) joining first and second pieces of fabric of the pocket (36, 38), wherein each weld seam (30, 31, 74, 82, 88) has multiple weld segments; characterised in said comfort layer (16, 16a-16m) having multiple tall sections (42, 42a-42h, 94), each of the tall sections (42, 42a-42h, 94) comprising multiple columns of pocketed mini coil springs (44, 44c, 44d, 56, 62), adjacent tall sections (42, 42a-42h, 94) being separated by at least one column of short pocketed mini coil springs (46, 46c, 46d, 58, 66), the pocketed mini coil springs (44, 44c, 44d, 56, 62) of each tall section (42, 42a-42h, 94) having an identical height (H3, H5) and the pocketed mini coil springs (46, 46c, 46d, 58, 66) of each short section (40, 40a, 40d, 96) having an identical height (H4, H6) less than the height (H3, H5) of the pocketed mini coil springs (44, 44c, 44d, 56, 62) of each tall section (42, 42a-42h, 94), and in that the mini coil springs (26, 52, 60) of each tall section (42, 42a, 42c) are identical and the mini coil springs (28, 54, 64) of each short section (40, 40a) are identical, the mini coil springs (26, 52, 60) of each tall section (42, 42a, 42c) having a smaller diameter than the diameter of the mini coil springs (28, 54, 64) of each short section (40, 40a).