1. Fabric composition: Printed non-woven fabric
2. Winter-side in regenerated grey wadding with high
consistency
3. Summer-side in regenerated grey wadding with high
consistency
4. Protective insulation sheet in non-woven fabric
5. Semirigid compact insulation material in pressed
and thermofused mixed carded fibres
6. Bonnel medium spring system: single mattress composed
of 154 biconical hardened springs made of 2.2 mm diameter
carbon steel wire and joined by 1.3 mm diameter carbon
steel wire spirals