Napping Plus Caffeine: Laboratory and Field Studies in Shift Workers
Summary
Shows combined napping and caffeine improves performance and alertness of night‑shift workers vs control conditions.
Why It Matters For Night Shift Workers and Night Owls
This RCT how brief, scheduled on‑shift naps (timing/length) showed sleep & alertness for night‑shift workers and night owls. Findings add structure to the idea that the circadian low can be managed by how rest is divided and timed on duty. For people who work nights, that frames an everyday choice (when you eat, how you light the end of a shift, how rest is split) as part of the mechanism, not just routine.
Notes
Classic shift‑work countermeasure data.