Effects of LED Versus Fluorescent Task Lighting on Sleep Quality and Daytime Function in Windowless Office Environments.

Int J Environ Res Public Health · 2025 · PMC12469396 · PMID 41007579

Europe PMC DOI

hedged sentences

0.0580

closest p · 1.2× alpha

0.0580

boldest claim

The sentences

approached significancep = 0.058so close (0.05 < p ≤ 0.1)

A paired-samples t -test indicated that this difference approached significance, t (31) = 1.97, p = 0.058, but did not reach the adjusted significance threshold following Bonferroni correction ( p < 0.01).

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a marginal trendno p-value reported

Complementing these results, daily sleep diaries showed higher self-rated sleep quality and a marginal trend toward increased sleep duration when participants were exposed to LED lighting.

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a positive trendno p-value reported

While sleep duration did not significantly differ, a positive trend was observed favoring the LED condition.

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