Abstract: A bedside table for use over a bed or like object. The table has a base and a vertical guide thereon. A table top having a support thereon is adapted to cooperate with the vertical guide on the base to maintain the table top horizontal as its vertical position is varied over a range. A constant force spring is connected between the base and the table top to apply a constant force tending to raise the table top over the range. Releasable locking means are provided to lock the table top at any vertical position within the range. The locking device includes a vertical surface and a pivotally mounted cam secured to move into and out of engagement with the vertical surface. A spring is provided for continuously urging the cam toward engagement with the vertical surface. The spacing between the pivot axis for the cam and the vertical surface is less than the length of the cam between the pivot axis and the free end of the cam.