Bed Soldiers

In A Child's Garden of Verses there is a poem called "The Land of Counterpane," which tells what a little boy did when he was ill, lying among the pillows with his toys:

And sometimes for an hour or so
I watched my leaden soldiers go,
With different uniforms and drills,
Among the bed-clothes, through the hills;

And sometimes sent my ships in fleets
All up and down among the sheets,
Or brought my trees and houses out
And planted cities all about.