Can confirm that it slightly reduced my sleep deprivation. However I do not happen to have breasts: if I did then the reduction would have been a great deal less due to a small child wanting access to them. Also sleeping on the couch on work nights _may_ have had something to do with the reduction in my sleep deprivation; my memory is a bit shot from sleep deprivation though so not sure. Also it did not stop night terrors, though they were rare.