The Bestla Euro Top, from the Back Supporter Dusk Collection, by Spring Air, provides a supportive sleep system with Individually Wrapped coils and a Body Span Insulator ™, which together gives you both individualized support and minimizes motion transfer. Additional support for your lumbar region is provided with a Gel Lumber Layer. Multiple layers of comfort foam, including Gel Infused Synthetic Latex and Air Suspension Foam, provide an inviting sleep surface to support and cushion you.