Skip to main content
MattressFirm Logo

Showing 14 of 18

A twin box spring, measuring 39" x 75", is a bed base that both supports and lifts your twin size mattress. Rimmed with wood and covered in fabric, a twin size box spring is a nest of springs specifically designed to give your twin mattress more stability. Pairing a twin mattress box spring with a twin size mattress is the secret to getting a better night's sleep.