No clear or consistent evidence that wearing an eye mask leads to meaningful improvement in learning and alertness: A reanalysis of Greco et al. (2023)

Abstract

Greco et al., in the "Statement of significance" section, claim that their findings suggest that "[...] wearing an eye mask during sleep is an effective, economical, and noninvasive behavior that could benefit cognitive function and lead to measurable impacts on everyday life." Here we examine some of the analysis choices made in this article and critically assess this claim. Firstly, Greco et al. should be applauded for clearly stating their analysis model and for publicly sharing their data (https://osf.io/q4p9v/), which made this reanalysis possible.