Kiro Olympic Mattress Construction • 510 GA 14 springs linked together with the Armalite process • 8 supports to prevent the mattress borders from weakening Padding • synthetic fiber felt • 1" foam, compressed at 37-42 lb Covering • polyester fabric • multiple needle stitching on 0.5" foam • stitched layer on foam with vents Wrapping • plastic bag Box Construction • wood foundation (9 horizontal and 5 vertical cross bars)  • on 5'' foam, compressed at 35-42 lb Covering • polyester fabric • stitched layer on foam Wrapping • plastic bag