A system includes a dispenser for dispensing sheet material including a body having four side walls and defining an opening at a top portion thereof, a base, a lid configured to cover the opening during use and enabling access to the opening for refilling, wherein the lid has a dispensing opening therein configured to enable sheet material to be dispensed therefrom, a platform configured to support a plurality of sheet material from below, wherein the platform is movable from a lowermost position when the dispenser is filled with sheet material to an uppermost position adjacent the lid when the dispenser is more nearly empty of sheet material, a spring for urging the platform towards the lid, and a releasable locking mechanism configured to hold the platform in a locking position in the lowermost position.