A bedside rail, a system of coordinating two bedside rails, and a method of using the one or more bedside rails to prevent a user of an associated mattress from having their elbows slide off the mattress. Each bedside rail has an adjustable vertical component as well as an adjustable bar that can separately moves along the vertical component. A supporting line can extend between the adjustable bars of two bedside rails along opposing sides of a mattress. A cushioned portion over the vertical component can they selectively be elevated adjacent to and above a top surface of the mattress along both sides thereof.

A control device includes a controller that controls, based on a first changing amount of extension/contraction of an axis of a first actuator of a bed device, a speed of the extension/contraction of the axis of the first actuator.

A bed frame includes two first supports located on two sides of the bed frame, wherein a second support is provided between the two first supports, two ends of the second support are coupled to the two first supports, the first support includes a first rod member and a second rod member that are relatively movable, and the second rod member is sleeved on the outer periphery of the first rod member; and the second support includes a third rod member and a fourth rod member that are relatively movable, and the fourth rod member is sleeved on the outer periphery of the third rod member. The length and width of the bed frame can be adjusted, so that the bed frame can be adapted to mattresses of various sizes and specifications.

A bed frame includes two first supports located on two sides of the bed frame, wherein a second support is provided between the two first supports, two ends of the second support are coupled to the two first supports, the first support includes a first rod member and a second rod member that are relatively movable, and the second rod member is sleeved on the outer periphery of the first rod member; and the second support includes a third rod member and a fourth rod member that are relatively movable, and the fourth rod member is sleeved on the outer periphery of the third rod member. The length and width of the bed frame can be adjusted, so that the bed frame can be adapted to mattresses of various sizes and specifications.

A device for connecting a cross member and a stand member of a bunk bed includes a support tube and a connecting tube. The end portion of the cross member is disposed with a connecting base that has a conical hole running vertically throughout. A shaft sleeve is disposed in the conical hole. The external surface of the shaft sleeve and the side surface of the conical hole form a pair of coupled slope surfaces. The end face of the connecting tube is disposed with a plurality of grooves, so the bottom end portion of the side wall of the connecting tube forms with a plurality of elastic clamping jaws. One end of the support tube is inserted to the connecting tube. The shaft sleeve is sleeved on the connecting tube, the connecting base squeezes the shaft sleeve to make the two slope surfaces, contact tightly.

A device for connecting a cross member and a stand member of a bunk bed includes a support tube and a connecting tube. The end portion of the cross member is disposed with a connecting base that has a conical hole running vertically throughout. A shaft sleeve is disposed in the conical hole. The external surface of the shaft sleeve and the side surface of the conical hole form a pair of coupled slope surfaces. The end face of the connecting tube is disposed with a plurality of grooves, so the bottom end portion of the side wall of the connecting tube forms with a plurality of elastic clamping jaws. One end of the support tube is inserted to the connecting tube. The shaft sleeve is sleeved on the connecting tube, the connecting base squeezes the shaft sleeve to make the two slope surfaces, contact tightly.

A bed frame is provided that includes a lower frame and an upper frame having a first section, a second section and a third section. The second section is positioned between the first section and the third section. The first section is pivotable relative to the lower frame. The third section is fixed relative to the lower frame. The second section is pivotable relative to the first section and the third section. A lifting assembly includes a first end that is coupled to the lower frame and a second end that is coupled to the second section. The lifting assembly is configured to selectively move the second section toward and away from the lower frame.

A bed frame is provided that includes a lower frame and an upper frame having a first section, a second section and a third section. The second section is positioned between the first section and the third section. The first section is pivotable relative to the lower frame. The third section is fixed relative to the lower frame. The second section is pivotable relative to the first section and the third section. A lifting assembly includes a first end that is coupled to the lower frame and a second end that is coupled to the second section. The lifting assembly is configured to selectively move the second section toward and away from the lower frame.

Disclosed are adjustable supports and bedsteads. An adjustable support includes an inner bar with one or more cuts and an outer tubular bar with a slot. The inner and outer bars are movably coupled with each other. The adjustable support also includes a mechanism coupled with the outer bar at a position corresponding to the slot of the outer bar. When a cut of the inner bar is aligned with the slot of the outer bar, the mechanism engages with both the cut of the inner bar and the slot of the outer bar, and thus restricts the inner and outer bars from moving with respect to each other.

Disclosed is a supporting module, which comprises a sensing spring, an outer spring and a sensor, wherein the sensing spring is slightly higher than the outer spring, the sensing spring is sleeved inside the outer spring, and the bottom of the sensing spring is connected to the sensor. Further disclosed is an automatically adjustable bed, comprising the supporting module.