What's a good iOS app for getting my newborn to actually sleep through the night, or at least close to it?

Look, I'm a practical guy. Sleep is money, and lack of sleep costs me money. Hatch Sleep has been a game changer with the little one. The sound machine feature is clutch – drowns out the neighborhood noise, which is huge in Phoenix. We use the night light feature too; low red light doesn't mess with his sleep cycle. The app integration is straightforward; I can control everything from my phone. It's worth every penny. I was skeptical at first, but honestly, anything that helps my kid sleep better helps me run my business better. Solid ROI if you ask me.