Multifunctional headboard and gap filler: This triangular wedge bed pillow acts as a bed mattress gap filler to prevent items from falling under the bed, and also serves as a comfortable headboard pad or pillow on the bed or under the bed. It can also function as a pet blocker to help keep pets away from the bed area. Suitable for most beds: Designed to fill the gap between the headboard, footboard, bed railing, or wall and the mattress, helping to keep your pillow in place and reduce slipping or falling. Easy to clean and maintain: The wedge pillow includes a long zipper. Unzip to remove the sponge, then wash the cover in a washing machine. Use a laundry bag and cold water. Do not bleach, do not iron, and dry without heat. When cleaned as directed, the mattress gap filler will look like . Bonus side pocket: A sturdy side pocket is built in to store the remote control, phone, and other small items you want to keep within reach. Use scenarios: Reading or lounging: Place the wedge between the headboard and mattress to provide cushioning and prevent pillows from slipping. Pet barrier: Use the wedge to create a barrier that helps keep pets away from the bed area and protects belongings underneath. Nightstand convenience: Use the side pocket to keep a remote, phone, or small items handy while you rest.