Medicare-approved inpatient hospital services in a hospital, including a Mental Hospital, for 90 days in a benefit period. (But, Medicare days in a Mental Hospital are limited to a 190-day lifetime maximum.) A benefit period starts on the first day (that is not part of a prior benefit period) on which the member receives covered inpatient services in a hospital or skilled nursing facility. It ends when the member has gone 60 days without being an inpatient in a hospital, skilled nursing facility or similar facility.