Table 1.

MSOS Intervention Session Content

Session	Content
#1: Sleep Behavior	MSOS introduction
	Review individuals’ sleep habits
	Psychoeducation on sleep behaviors: two process model of sleep, sleep hygiene, sleep control
	Setting goals for sleep behavior changes
	Homework assignment – sleep behaviors
#2: Sleep Cognition	Review homework of session 1
	Psychoeducation on sleep cognition: identify noisy thoughts, active mind, automatic negative thoughts, worries, with focus on cancer-related cognition
	Setting goals for monitoring sleep cognition
	Homework assignment – sleep behaviors & monitoring sleep cognition
#3: Sleep Cognition	Review homework of session 2
	Psychoeducation on sleep cognition: challenging and reframing noisy thoughts, active mind, automatic negative thoughts, worries, with focus on cancer-related cognition
	Setting goals for reframing sleep cognition
	Homework assignment – sleep behaviors & monitoring and reframing sleep cognition
#4: Sleep in Relationship	Review homework of session 3
	-Psychoeducation on sleep in relationship: effective communication; behaviors, thoughts, and emotions in the cancer journey -Psychoeducation on good sleep maintenance and relapse prevention
	Setting goals for effective communication, good sleep maintenance and relapse prevention
	Homework assignment – sleep behaviors, monitoring and reframing sleep cognition, effective communication with partner, good sleep maintenance