Frequently asked questions

A structured way to teach a baby to fall asleep on their own. You put your baby down drowsy but awake. If they cry, you wait three minutes, check in for under a minute (no pickup), wait five, check in, wait ten, check in, and then keep ten-minute waits until they fall asleep. Each night the waits get longer. Most families see clear improvement by Night 3 and a sleeping baby by Night 7.

No. Cry it out (technically full extinction) means putting your baby down for the night and not returning. Ferber is graduated extinction: you wait, check in, wait longer, check in. The check-ins are the difference. They are why most families describe Ferber as exhausting but doable, where cry it out feels like a different category of intervention. Read the method for the longer version.

No, in the studies that have looked at this. Behavioural sleep training including Ferber has been studied repeatedly across months and years post-arc, and the consistent finding is no measurable harm to attachment, mood, or stress in trained babies compared to non-trained controls. Parenting Science has the most readable summary of the evidence.

Dr. Ferber's published minimum is 4 months. The current consensus among pediatric sleep specialists, summarized by the Sleep Foundation and Huckleberry, is between 4 and 6 months. We hold to 6 because self-soothing readiness is more reliable at that age, most healthy babies no longer need a night feed, and the cleaner bar removes a judgment call from a sleep-deprived parent.

For most healthy babies over six months, yes. The published evidence is consistent: time-to-asleep typically drops by more than 50 percent within three nights, and most arcs complete around Night 7. Some babies take eight or nine. Some take five. The arc itself, once your baby is on it, runs in a narrow band of outcomes.

Three minutes, five minutes, ten minutes. After the third interval, the third value (10) repeats until your baby falls asleep. Each waking later in the night gets the full 3-5-10 sequence again from the start.

Walk in. Speak softly. Same words every time. Optional brief pat (5 seconds, not 30). Walk out. Total time, ideally 15 to 45 seconds. The check-ins guide covers what not to do.

Ferber works in a shared room. The protocol is the same. The two practical adjustments: put the cot somewhere your baby cannot directly see your bed during a wait, and use a white noise machine to mask the sound of you reading or moving in the same room. Many families also temporarily move to a different room for the first three nights of the arc and return after Night 3.

Go in. Clean up. Do not turn it into a long event. When you put your baby down again, restart the interval where you left it. Vomiting on Night 1 happens occasionally and is not a signal to abandon the protocol; it is a signal to clean up and continue.

If your pediatrician has signed off on stopping night feeds, drop them as part of the arc. If your pediatrician wants a specific feed retained for medical reasons, keep that one and run Ferber on the other wakings. The trained pattern can coexist with one specific feed indefinitely.

No. Pause. Comfort, treat, follow your pediatrician's guidance. Resume the arc when your baby has been well for at least 24 hours. The teething and illness guide covers the specifics.

The 8-month, 12-month, and 18-month regressions can run alongside a Ferber arc, but it is usually faster to wait two weeks for the regression to stabilise and then run a clean short arc. The regressions guide walks through each one.

Not the first arc. Hold off until you are home for at least a week. After the original arc, short trips of three nights or less rarely undo the training; longer trips usually need a short re-arc when you get home. The routine-changes guide covers travel.

Do not start. An arc with two parents running different protocols is genuinely worse for the baby than not training at all. The co-parenting guide walks through how to reach agreement, and what gentler alternatives exist if you cannot.

No. The method has worked since 1985 with a watch and a notepad. The app is for the moment at 2 a.m. when you are not going to do mental math. It runs the timer, logs check-ins, works out the next night's intervals, and has a Home Screen widget so the timer is one tap away.

The download is free and Night 1 is free, with no card needed. After that, a one-time in-app purchase called the Full 7-Night Program unlocks Nights 2 to 7 for good. It is $29.99 in the US, and the App Store shows your local price before you buy. It is not a subscription: nothing renews and there is nothing to cancel. Pricing details.

Yes, if you use Apple Family Sharing. The purchase is shared with your Family Sharing group, so your partner can unlock the program on their own iPhone.

No. Sign in to the App Store with the same Apple ID, open Ferber, and tap Restore purchases on the unlock screen or in Settings. How to restore.

Not yet. Ferber is iPhone only for now.

No. There is no account, no sign-up and no login. Your night history and settings live on your iPhone.

Yes. The timer runs on your phone, and your night history is stored on your phone, not on a server. You can run Ferber on a plane, in a hotel with no Wi-Fi, or in a power outage if your phone is charged.

We use privacy-friendly, anonymous analytics and crash reporting so we can see what is working and fix bugs. That data is tied to a random install ID, not your name or email. No ads, no selling your data, no cross-app tracking, and we do not collect your device's advertising identifier. Your baby's name, if you add one, stays on your phone. The privacy policy has the specifics.

Only the ones you opt into. One nightly bedtime reminder if you want it, plus interval check-in alerts while a session is running. That is the entire notification surface. No marketing pings, no streaks, no "how are you feeling?" pop-ups.

Lucky Future Ltd, trading as Pickled Pepper Studio. We are a small team. We built Ferber because two of our co-founders had a baby in the same year and could not find a sleep-training app that respected the published method without selling premium upsells we did not want. The about page has the longer version.

No. The Ferber method is published in Solve Your Child's Sleep Problems, available where books are sold. We have implemented the method as published, with primary-source citations on every page that makes a method claim. We are not endorsed by Dr. Ferber or by Boston Children's Hospital.

Email [email protected] with your device, app version, and what you saw. We reply Monday through Friday. The support page has more channels.