The method

Why your baby cries the moment you put them down

A baby who cries the moment you put them down is usually normal. Why it happens, from sleep associations to separation anxiety, and what can help.

The Ferber team September 27, 2026 5 min read

Getting ready: a settling timer while you lay your baby down drowsy but awake.

Your baby is finally asleep on your shoulder. You walk to the crib in slow motion, lower them inch by inch, ease your hand out from under their head, and before you have straightened up, their eyes snap open and the crying starts.

Here is the short answer. A baby who cries the moment you put them down is almost always doing something normal. The most common reason is that they fell asleep in your arms, and waking up somewhere different is upsetting. Older babies may also be going through separation anxiety, a normal stage that often starts in the second half of the first year. What helps is gradually teaching your baby to fall asleep in the crib itself, starting by putting them down drowsy but still awake.

The most common reason: they fell asleep somewhere else

Babies link falling asleep with whatever was happening as they drifted off: being held, rocked, fed or walked. Sleep specialists call this a sleep association, and it is central to how Dr. Richard Ferber explained night wakings in his book Solve Your Child’s Sleep Problems.

Think about it from your baby’s side. They fell asleep warm, held and moving. A moment later they are lying still on a flat mattress, and the thing that helped them fall asleep has disappeared. Of course they protest.

The American Academy of Pediatrics makes the same point about night wakings. It says that babies who are held or rocked to sleep may struggle to go back to sleep when they wake during the night, and recommends that from 4 months, babies go to bed drowsy, without waiting until they are asleep. That way, the place they wake up is the same place they fell asleep.

Separation anxiety in older babies

If your baby used to go down easily and has started crying the moment you leave, separation anxiety may be part of it. The AAP describes separation anxiety as a normal stage of emotional development that can begin in the second half of the first year and can cause many nights of disrupted sleep. A baby may cry anxiously for one or both parents, often with a strong preference for one. The AAP says it typically fades around the second birthday, and recommends a loving and consistent approach.

In practice, that can look like:

A calm, predictable bedtime routine, the same every night.
Telling your baby matter-of-factly that you are going, even if they are too young to understand the words, and then going.
Short, confident goodbyes instead of long, hesitant ones, which can wind a baby up more.

Other things worth ruling out

Sometimes the crying has a simpler cause.

Too tired or not tired enough. A baby who is overtired can find it hard to settle, and one who is not yet sleepy may simply not want to lie down. Adjusting bedtime by 15 to 30 minutes for a few nights can show you which it is.
Hunger. Whether your baby still needs a feed at night is a question for your pediatrician. If a feed is part of bedtime, try moving it earlier in the routine so your baby does not fall asleep on the bottle or breast.
Discomfort. A wet diaper, being too warm, or a scratchy sleep sack are easy to check.
Illness or pain. If the crying sounds different, starts suddenly, or comes with a fever, vomiting, poor feeding or trouble breathing, pause any changes and call your pediatrician.

What helps a baby who cries when put down

The goal is for your baby to do the last bit of falling asleep in the crib. How quickly you get there depends on your baby’s age and what you are comfortable with.

For babies under 4 months. Crying when put down is extremely common in young babies, and sleep training is not recommended this young. Soothe them in whatever safe way works. The AAP’s self-soothing guidance suggests starting with the least you can do, like eye contact, a calm voice, or a hand on your baby’s chest, and building up to picking up and rocking only if needed. When your baby is calm and drowsy, try putting them down. If they cry, pick them up and try again later.

From about 4 months. Start practicing drowsy but awake at bedtime. Do the routine, then put your baby down relaxed and sleepy with their eyes still open. Expect some fussing at first. Our guide to drowsy but awake covers how to judge the right moment.

Gradual steps. If your baby is used to being rocked all the way to sleep, you can shrink the help in stages over a week or two: rock until very drowsy instead of asleep, then rock less, then just hold, then put down with a hand on their chest. Our article on how to stop rocking your baby to sleep has a step-by-step plan.

A structured method, from about 6 months. If the gradual approach is not working, or you want a clearer plan, a method like Ferber uses short, timed check-ins while your baby learns to settle. The Sleep Foundation recommends putting your child to bed drowsy but awake as part of the method, so they learn to fall asleep without being held or fed. The method page explains how it works, and the compare page covers gentler options such as the chair method and pick-up-put-down. If your baby is under 6 months, talk to your pediatrician before starting any sleep training.

Tonight

Try one small change at bedtime. Finish the routine, then put your baby down a minute or two earlier than usual, while they are drowsy but their eyes are still open. Stay close, put a hand on their chest if it helps, and see what happens. A little fussing is normal. If they become truly upset, pick them up, calm them, and try again.

If you decide to try the Ferber method, the app runs every wait, alerts you at check-in time, and times each check-in (2 minutes by default).

Common questions

Why does my baby wake up as soon as I put them in the crib?

Often because they fell asleep somewhere else, such as in your arms or while feeding, and the change to a still, empty crib wakes them. Babies link falling asleep with whatever was happening at the time. Putting your baby down drowsy but still awake, from about 4 months, helps them learn to fall asleep in the crib itself.

Is it normal for a baby to cry when put down?

Yes, very. Young babies want to be close to a caregiver, and in the second half of the first year many babies go through separation anxiety, which the American Academy of Pediatrics describes as a normal stage of emotional development. Crying when put down is not, on its own, a sign that anything is wrong.

Can I let my baby sleep in a swing or car seat if that is the only place they settle?

No. The American Academy of Pediatrics says that if your baby falls asleep in a car seat, stroller, swing, infant carrier or sling, you should move them to a firm, flat sleep surface on their back as soon as possible. The crib or bassinet is the safe place to sleep.

When should I worry about my baby crying when put down?

Talk to your pediatrician if the crying sounds like pain, starts suddenly and is different from usual, comes with fever, vomiting, poor feeding or trouble breathing, or if your baby seems uncomfortable lying flat. Those are reasons to see a doctor before any sleep training.

Sources

Written by The Ferber team. Educational information, not medical advice. If you are worried about your child’s health, feeding or growth, talk to your pediatrician.

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