1) Hospital overnighter 2) Hospitalized one 3) Inmate 4) One admitted 5) One staying overnight 6) Overnight case 7) Patient 
• (n.) A patient who receives lodging and food, as well as treatment, in a hospital or an infirmary; -- distinguished from outpatient.
(in´pa-shәnt) a patient who comes to a hospital or other health care facility for diagnosis or treatment that requires an overnight stay.
Somebody who needs treatment in hospital.
In'pa`tient noun A patient who receives lodging and food, as well as treatment, in a hospital or an infirmary; -- distinguished from outpatient . 
Inpatient: A patient whose care requires a stay in a hospital. As opposed to an outpatient. The term inpatient dates back to at least 1760. The case of an inpatient was referred to an incase.
a person who has been admitted at least overnight to a hospital or other health facility. 
[n] - a patient who is residing in the hospital where he is being treated
A patient who has been admitted to hospital for treatment and is occupying a hospital bed.
A patient who is admitted to the hospital and stays overnight or for an indeterminate time.
a patient who stays in a hospital while receiving medical care or treatment.