Sleep Disturbance
Conditions
Brief summary
Human centric lighting (HCL) is a technology that supports the body's circadian rhythm, as it can stimulate the sleep triggering hormone, melatonin, to improve sleep hygiene over standard lighting (SL), and promote recuperative sleep for a timely return-to-duty. In intensive care units, exposure to HCL has improved sleep measures. However, the effect in the medical surgical (MS) environment is unknown. The purpose of this study is to assess the feasibility of study procedures in MS setting and conduct a preliminary evaluation of the effect of light on inpatient sleep. Recruitment started November 2020 through April 2021. Data analysis is pending.
Interventions
DEVICEHuman Centric Lights
Bright light is emitted during the day from 06:00, then auto-dimmed light is used at night, beginning 19:00.
Sponsors
TriService Nursing Research Program
Landstuhl Regional Medical Center
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Patient who is an active duty service member, GS Civilian, Dependent or Retiree affiliated with the Army, Air Force or Navy. * Patient who is informed by provider or anticipates being admitted for at least two nights. * Patient who can read and speak English fluently (since surveys are not translated in any other language).
Exclusion criteria
* Patient with visual impairment which cannot be corrected with glasses or contact lenses such as complete blindness, (defined as inability to see light), or partial blindness (defined as very limited vision) such as patients with history of cataracts. * Patient taking an oral medication for sleep. * Patient receiving radioactive ionization treatment. * Patient who requires isolation or palliative care. * Patient recovering from head/neck or oral maxillofacial surgery that would impede saliva sample collection (i.e. jaw wiring, extensive gauze packing in oral cavity) * Patient who reports status as a Department of Defense Contractor at screening.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Total Sleep Time | During participant's inpatient stay, not to exceed 5 days. | Assess the feasibility of measuring total sleep time in MS setting, using an actigraphy device. |
| Sleep Efficiency | During participant's inpatient stay, not to exceed 5 days. | Assess the feasibility of measuring sleep efficiency in MS setting, using an actigraphy device. |
| Sleep Patterns | During participant's inpatient stay, not to exceed 5 days. | Assess the feasibility of assessing sleep patterns in MS setting, using a Consensus Sleep Diary (CSD). |
| Dim Light Melatonin Onset - collection | During participant's inpatient stay, not to exceed 5 days. | Assess the feasibility of collecting samples to assess dim light melatonin onset in MS setting, using passive drool saliva sampling. |
| Patient experience | One time - approximately a 5 to 15 minute interview | Describe the patient's experience of participating in the study, in a MS setting, using a semi-structured interview (SSI). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Dim Light Melatonin Onset - analysis | Collected during participant's inpatient stay, not to exceed 5 days. | Conduct a preliminary evaluation of the effect of light on inpatient sleep using dim light melatonin onset saliva sampling. |
Countries
Germany
Outcome results
None listed