| 摘要 |
PROBLEM TO BE SOLVED: To improve comfort to sleep in by applying a mat utilizing fluid pressure to a Gatch bed. SOLUTION: In a mat 1 utilizing fluid pressure wherein a liq. bag 11 in which a liq. L is sealed is provided in at least a part of the mat, the liq. bag 11 is divided into a plurality of regions 11a-11d by partition walls 112 and a communication path is provided between a region and at least one region except it. The communication path is mutually communicated by an orifice hole 115 provided on the top end part in the body trunk direction of one region. |
