Ambient bright lighting in the morning improves sleep disturbances of older adults with dementia
Chuen-Ru Liu, Yiing Mei Liou, Jwo-Huei Jou
Sleep Med. 2022 Jan:89:1-9. doi: 10.1016/j.sleep.2021.10.011. Epub 2021 Oct 21.

https://pubmed.ncbi.nlm.nih.gov/34844127/

Light therapy for the treatment of delayed sleep-wake phase disorder in adults: a systematic review
Jefferson Novais Gomes, Cristiane Dias, Renata Silva Brito, Juliana Rodrigues Lopes, Igor Alonso Oliveira, Alexandra Noemi Silva, Cristina Salles
Sleep Sci. 2021 Apr-Jun;14(2):155-163. doi: 10.5935/1984-0063.20200074.
https://pubmed.ncbi.nlm.nih.gov/34381579/

Recommendations for daytime, evening, and nighttime indoor light exposure to best support physiology, sleep, and wakefulness in healthy adults
Timothy M. Brown, George C. Brainard, Christian Cajochen, Charles A. Czeisler, John P. Hanifin, Steven W. Lockley, Robert J. Lucas, Mirjam Münch, John B. O’Hagan, Stuart N. Peirson, Luke L. A. Price, Till Roenneberg, Luc J. M. Schlangen, Kenneth P. Wright Jr
Published: March 17, 2022
https://doi.org/10.1371/journal.pbio.3001571

The effect of light therapy on sleep disorders and psychobehavioral symptoms in patients with Alzheimer’s disease: A meta-analysis
Lili Zang, Xiaotong Liu, Yu Li, Jiang Liu, Qiuying Lu, Yue Zhang, Qinghui Meng
Published: December 6, 2023    https://doi.og/10.1371/journal.pone.0293977

The Effects of Light Therapy on Sleep, Agitation and Depression in People With Dementia: A Systematic Review and Meta-analysis of Randomized Controlled Trials
Kenneth NK Fong, PhD, Xiangyang Ge, and Hilda Cheung, PhD
First published online March 16, 2023    https://doi.org/10.1177/15333175231160682

Light as Therapy for Sleep Disorders and Depression in Older Adults
Philip D. Sloane, MD, MPH, Mariana Figueiro, PhD, and Lauren Cohen, MA
Published in final edited form as: Clin Geriatr. 2008 Mar 1; 16(3): 25–31. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3839957/