Appendix 1.

Overview and comparison of treatment protocol session content

Week	Walk	Light	NITE-AD	Control
1	Introduction to sleep in aging and dementia Rationale for walking to improve sleep Development of daily walking plan	Introduction to sleep in aging and dementia Rationale for light exposure to improve sleep Development of daily light exposure plan	Introduction to sleep in aging and dementia Development of individualized participant sleep plan Rationale for walking to improve sleep Development of daily walking plan	Introduction to sleep in aging and dementia
2	Problem-solving obstacles to walking adherence	Problem-solving obstacles to light exposure adherence	Problem-solving obstacles to walking and sleep plan adherence Rationale for light exposure to improve sleep Development of daily light exposure plan	Caregiver nondirective support
3			Problem-solving obstacles to walking, light, and sleep plan adherence ABCs of behavior management
4	Brief phone call: Use of daily sleep and walking log	Brief phone call: Use of daily sleep and light exposure log	Problem-solving obstacles to walking, light, and sleep plan adherence	Brief phone call: Use of daily sleep log
5
6	Brief phone call: Use of daily sleep and walking log	Brief phone call: Use of daily sleep and light exposure log	Problem-solving obstacles to walking, light, and sleep plan adherence	Brief phone call: Use of daily sleep log
7
8	Maintenance walking plan	Maintenance light exposure plan	Maintenance plan	Caregiver nondirective support
Treatment Implementation Components	Education Goal setting Problem-solving Homework	Education Goal setting Problem-solving Homework	Education Goal setting Problem-solving Homework	Education Caregiver support