Includes 4 sturdy sheet holders to secure linens and keep them tidy through the night. Key features and benefits Easily adjustable height to fit various mattress thicknesses Designed to work with most bed setups at home, ensuring a snug fit whether you have a standard mattress or a thicker setup with toppers. Firm sheet stability The claw design grips sheets securely to reduce slippage during sleep, helping you wake refreshed with a neater bed. Slack space feature for durability Built in springs allow a small amount of give after securing the sheets, reducing stress on fabric and helping prevent tearing from movement or shifting during sleep. Use scenarios Regular bed setup Install the four holders at the corners, adjust the height to match your mattress, and enjoy sheets that stay in place overnight without constant readjustment. Thick mattress or topper Use the adjustable height to accommodate extra thickness, maintaining firm sheet hold without compromising comfort. Restless sleepers The secure grip plus the slack spring mechanism helps prevent sheet tearing and reduces the need to resecure sheets after movement.