...After 1820, people slept on cotton mattresses with metal springs inside them.
Beds made of metal became popular, too. The best beds were made of a yellow metal called brass. Metal beds are better for your health than beds made of wood because they have fewer insects in them. That’s why hospital beds are metal today.
In ancient Rome, people slept in their everyday clothes. In England, people did not wear clothes in bed. They wore a cap to keep their head and ears warm. Later, men wore nightshirts and women wore long nightdresses and hats. It was only after 1890 that men started to wear pajamas.
People had interesting way to keep warm in bed. Many families shared one big bed. Some people had a small dog in bed to keep their feet warm. Sometimes, people warmed the bed before they got into it. They warmed stones.....