This treats only short-term effects and relies on a small (0.45 hours) self-reported increase in sleep time obtained by just telling people to sleep more. Effec

This treats only short-term effects and relies on a small (0.45 hours) self-reported increase in sleep time obtained by just telling people to sleep more. Effects on children are totally absent. It's not sufficient to even reduce interest in improving sleep quality because it doesn't measure most of the effects and the methodology is questionable: did participants accept, e.g., lower-quality meals in order to find more time to sleep? It does show that rich people telling poor people what to do rarely produces any improvement — we've seen that before.