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Canonical Source · peer reviewed study
This page documents how this source is reused across Claim by Claim. A source can support, challenge, qualify or contextualize different claims; appearing here does not imply endorsement of every linked proposition.
Evidence context
Evidence roles describe what this source helps establish inside each Investigation. They are local to that use, not permanent labels attached to the publication itself.
Investigation
A 2025 randomized sham-mat sleep study reported favorable outcomes, but internally inconsistent analyzed samples (56 versus 58 across text/table) and different baseline insomnia scores undermine an unequivocal inference about chronic-disease effects.
Subject families