Elastic sheets fail to fulfill the market demand for sheets that stay tight, stay on the mattress and can fit on a wide range of mattress thicknesses. The Comfy Snug Drawstring Sheet provides and easily marketed solution anyone can understand. With the increase of the use of adjustable beds and foam beds, where the sleeper sinks into the mattress, the need for a positively secured fitted sheet will only grow. Other uses: RVs, hospital beds, etc.