Hard board bed for old people

The utility model relates to the technical field of furniture supplies, and discloses a hard board bed for old people. A sliding groove column is fixedly connected to one side of the support column, a sliding groove is formed in one side of the sliding groove column, a sliding groove plate is slidably connected to one side of the interior of the sliding groove, by moving the sliding plate, the sliding plate can be attached to the fixed plate, the fixed plate and a semicircular clamping protrusion on the sliding plate are arranged in a sleeving mode through a lantern ring, and the fixed plate and the sliding plate cannot be separated; if a middle-layer cushion is placed between the fixed plate and the sliding plate, clamping of the middle-layer cushion can be achieved, meanwhile, the compactness degree of the middle-layer cushion can be changed according to the clamping length, a sleeper can obtain different experiences, one side of the sliding groove plate is slidably connected to the interior of the sliding