Cross section of a waterbed with 4D-technology

1. Cover / quilt
2. 4D-Comfort mattress surface
3. The mattress containers' foam rail
4. The mattress containers' cover
5. The plinths weight dividers
6. Plinth
7. Upholstery of the mattress container
8. Rigid plastic profile of the mattress container
9. Foam rail fixation
10. Baseboard of the mattress container
11. Insulation pad (Isopad)
12. Waterbed heater
13. Safety liner
14. Bottom of the 4D-Comfort mattress
15. Stabilisation fibres
16. The waterbed heater's thermostat
17. Extra pelvic support in the 4D-Comfort mattress