| 摘要 |
According to the present invention boards 1 are placed under the mattress. These boards have grooves 2 in their upper surface and have steel wire springs 3 of varying height and thickness on their lower surface held firm at the ends of boards by plastic supports 4 and on the cross bars 5 of the bed by special plastic sockets 6 and which are joined together to keep them in place. This way the grooves 2 hold the mattress firmly on the boards 1 so it does not slip. The springs create undulations which are transferred to the mattress and help the curves of the body with different weight such as the head, chest, middle, extremities and legs sink better during movements when sleeping. The result is a healthier, more restful and shorter sleep. |
