The systems and methods described herein include a shell that fits around the mattress of an adjustable bed. The shell may help cover unsightly pivot joints and motors that are part of the adjustable bed. The shell may help hold the mattress in place during the operation of the adjustable bed, or when a user exits or enters the bed. The shell may further help keep the shape of the mattress and prevent the mattress from sagging with time and use. Additionally, the systems and methods described herein include for providing additional features in the shell. Such features may help the user be more comfortable in the adjustable bed, and improve the user's quality of life. These features may be especially useful for patients confined an adjustable bed for prolonged periods of time, such as in a hospital or elderly home care.