Sleep deprivation is a torture from the Middle Ages! Since my son has the pacifier with the lighting function he finds you at night himself, puts it back in his mouth and goes back to sleep. Otherwise he was always awake and I had to find the pacifier in the dark. A lot of time at night so went with not sleep lost. Now is the past and I again sleep and should he but once fall out of bed, he is quickly found. 5 Stars !!!