Study participants will be risk stratified according to the eCART scoring algorithm each night. If they are stratified as low risk, they will not receive routine nighttime spot-check vital signs unless indicated by a change in patient status or monitor alarm.

Study participants will be woken at night for routine nighttime spot-check vital signs regardless of patient disease severity or risk.

Every night, subjects will be risk stratified into low-risk or medium- to high-risk using a physiologic risk score, eCART. Subjects who meet the low-risk criteria will not be woken up for routine nighttime vitals (typically at midnight and at 4 am). However, subjects will continue to be woken up for laboratory draws, procedures, or treatments as per usual. Subjects who are medium- to high-risk will continue to be woken up at night for routine nighttime vitals. Alarms for all subjects, including low-risk subjects, will continue to alert nurses in real-time. If the primary nurse of a low-risk subject is alerted of an alarm, the nurse will have to go into the subject's room to turn off the alarm and therefore check on the patient.

Pittsburgh Sleep Quality Index

Karolinska Sleep Log

Potential Hospital Sleep Disruptions and Noises Questionnaire

ICU transfer or cardiac arrest