DD used a dummy and still does, but only for sleep and nap times. She's getting kinda old for one now i think, but she never wakes if it falls out. She'll either put it back in herself or sleeps fine without it. When she can understand what's happening, I'll take it away. DS doesn't use one and I'm trying not to give him one if i can help it. (touch wood) he's a great sleeper (please don't hit me lol). But if that changes and i am going insane and have tried everything else, I might give it a go.