Plain Facts for Old and Young by John Harvey Kellogg

9. If wakeful at night, instead of lying in bed trying to go to sleep,

get up at once, open the bed, air the sheets, remove the night clothing and walk about the room for a few minutes, rubbing the body briskly with the bare hand at the same time. A tepid sponge bath, followed by a vigorous rubbing kept up until really tired, will conduce to sleep in many cases. Sometimes a change of bed, or pulling the bed to pieces and arranging it again, is just the thing needed to bring sleep.