| 摘要 |
<p>A sleeping mattress comprises in order a first layer made of cushion material formed with wavelike projections, a second layer having semi-circular projections provided with permanent magnets, a third layer stuffed with palm fibers and reinforcing materials, and a fourth layer composed of cushion materials; a magnetic curing effect by the magnets and a spone balancing effect by moderate hardness are obtained during sleeping, and comfortable sleeping may be achieved.</p> |
