Make Some Noise
Having just emerged from a very loud place—your body, where the sounds of a pumping heart, flowing blood and various other bodily functions can get a bit noisy—newborns are often soothed by the familiar dull roar of white noise.
Noise machines, vacuum cleaners, noise machines and vacuum cleaners: try them out and see what works for your baby.
“If she instantly stops crying [when you turn on the vacuum], go and get a white noise machine. You could also try shushing in her ear (has to be loud enough to get her attention, and louder than her screams). Remember the key to white noise working is it has to be loud, then after she’s asleep you can turn it down a little.”— From mom Pooter Pie