The invention discloses a bed with the functions of automatically covering with a quilt, alarming at a fixed time and lifting a pillow. The bed comprises a bed frame, a bed plate, a supporting frame,a mattress, a quilt and a control device, wherein the bed plate comprises a fixed plate and a rotatable plate; the rotatable plate is hinged to the fixed plate; a first telescopic cylinder is hinged to the bottom of the rotatable plate; the first telescopic cylinder is arranged on the bed frame; the supporting frame comprises four supporting rods fixed to four corners of the bed frame and a top frame; the top frame is equipped with four second telescopic cylinders and four illuminating devices which are connected with four corners of the quilt respectively; the mattress is laid on the fixed plate; the fixed plate and the rotatable plate are arranged on the top surface of the bed frame; the pillow is fixed to the top surface of the rotatable plate; a hollow headboard is arranged on one side, near the end part of the rotatable plate, of the bed frame; an alarm clock timing device and a control switch are arranged on the headboard; the control switch is electrically connected with a control device; the control device is electrically connected with the first telescopic cylinder, the second telescopic cylinders, the alarm clock timing device and the illuminating devices.