Naturalistic measurement of sleep in older adults with amnestic mild cognitive impairment: Anxiety symptoms do not explain sleep disturbance

Abstract

Background: Sleep disturbance is prevalent in Alzheimer’s disease (AD). In amnestic mild cognitive impairment (aMCI), the preclinical stage of AD, deterioration in sleep quality has also been reported. Consensus is lacking, however, regarding what aspects of sleep are characteristically affected, whether the setting of the sleep recordings impacts these findings, and whether anxiety may account for the differences. Objective: The current study aimed to address these knowledge gaps by obtaining comprehensive sleep measurement in aMCI within a naturalistic environment using in-home sleep recordings. Methods: 17 healthy older adults and twelve participants with aMCI wore an actiwatch for two we..