what is the meaning of "so broken of my rest" in this context?
On Friday night, March 31st, 1848, we concluded to go to bed early and not permit ourselves to be disturbed by the noises, but try and get a night's rest. My husband was here on all these occasions, heard the noises, and helped search. It was very early when we went to bed on this night – hardly dark. I had been so broken of my rest I was almost sick. My husband had not gone to bed when we first heard the noise on this evening. I had just lain down. It commenced as usual. I knew it from all other noises I had ever heard before. The children, who slept in the other bed in the room, heard the rapping, and tried to make similar sounds by snapping their fingers.