Evidence Library · Leadership Pathways & Outcomes

Poorer leader sleep quality was indirectly linked to more abusive supervision and lower team engagement

Peer-reviewed researchPeer reviewed

External empirical finding · Supporting · 2015

Poorer leader sleep quality was indirectly linked to more abusive supervision and lower team engagement

Across 606 matched daily observations from 88 supervisors and their work units over 10 workdays, poorer reported sleep quality, but not shorter sleep duration, was indirectly associated with lower daily team engagement. The estimated pathway ran through greater leader self-control depletion and more abusive supervisory behavior reported by subordinates.

Research basis

Multisource experience-sampling field study. 88 supervisors and their work units observed across 10 consecutive workdays.

What it supports

A concrete leader sleep to behavior to team-engagement pathway and the importance of measured mediators.

Boundary

This was a multisource daily field study, not an experiment. The timing and mediation analysis support the proposed sequence but do not establish causation. The outcome was daily work-unit engagement, not team execution, financial performance, or enterprise performance, and the supervisors were not specifically C-suite executives.

BOL relevance

Provides direct workplace evidence for behavior and engagement as pathways between a capacity-relevant driver and a team outcome.

Source class

Peer-reviewed research

Role in BOL

Supporting

Population context

Leaders or executives

Evidence basis

Objectively measured or experimentally assessed

Sample

606 matched daily observations

Endpoint

Daily work-unit engagement, leader self-control depletion, and subordinate-reported abusive supervision

Important null or boundary finding

Sleep quality carried the reported indirect pathway; sleep duration did not.

leader sleepleadership behaviorengagementmediation

Source record checked 26 July 2026.

This entry is part of the Bio-Optimized Leadership™ Evidence Library. Each claim states its research basis, what the source supports, what it does not support, and how it relates to the BOL model.