People once relied on roosters, church bells and night watchmen to know when to wake.

The longer version

Before affordable clocks, waking signals came from outside: a rooster at first light, bells marking the hours of prayer, or a watchman calling the hour and the weather through the streets. Towns organised daily life around these audible markers. A rooster was useful precisely because it crows shortly before first light rather than at a fixed hour.

The watchman was also a security role, checking doors and watching for fire during the night. Some towns paid bell ringers who announced curfew and dawn, while rural households relied on animals and on daylight itself. Personal timepieces gradually made the practice unnecessary, and the night cry faded from city life.

Where this entry sits

This collection gathers curious details about sleeping and dreaming, from nightly brain stages and body clocks to naps, yawns and unusual animal habits. It also covers how bedtime customs have changed across centuries, without offering any advice. The full list sits on the Sleep and Dreams page, where every entry is listed in order.