Abstract: Objective: To develop a sleep restriction program for older adults with Mild Cognitive Impairment (MCI) and insomnia, and validate its effectiveness, thereby providing implications for sleep improvement among this population. Methods: Based on Health Action Process Approach, a preliminary sleep restriction program was developed through literature review and refined via the Delphi expert consultation method. Using convenience sampling, eight eligible participants were recruited from a community health center in Fuzhou between May and July 2024 to preliminarily validate the program. Results: The Delphi consultation process involved 15 experts across two rounds, achieving response rates of 83.3% and 100.0%, respectively. The expert authority coefficient reached 0.890, with Kendall's W coefficients of 0.224 and 0.385 for successive rounds (all P<0.05). The finalized protocol comprised 4 first-level domains and 16 second-level components. Preliminary application results showed that the Insomnia Severity Index scores of 8 elderly individuals decreased from 14.00±4.72 to 10.75±3.41 after the intervention, with a statistically significant difference (P<0.05). Conclusion: The program shows scientific rigor and clinical applicability, with preliminary efficacy in improving sleep conditions.

Key words: Mild Cognitive Impairment; insomnia; sleep restriction; Health Action Process Approach; community-dwelling older adult