Teething and Baby Sleep: How to Tell Discomfort From Habit

It's the middle of the night. Your baby, who usually settles without much fuss, screams the moment you lay them down. You tilt their head toward your phone flashlight and look for a white edge on the gums. Someone has told you it's probably teething, and it might be.

First teeth often start to appear somewhere around the middle of the first year, though the timing varies a lot from baby to baby. Teeth keep coming in until around age two or three. That is a long stretch, and babies are changing in other ways during it. They are rolling, crawling, pulling up, dropping naps, and getting more aware of when you leave the room. Any of those can disrupt sleep, so teething gets blamed for a lot it didn't cause.

I don't want you to assume every night waking in the first two years comes from teeth. I also don't want you to treat every cry as a sleep-training problem. A baby who is truly uncomfortable needs comfort, not a stricter bedtime.

Teething can cause mild fussiness, extra drooling, chewing on hands and toys, and sore or swollen gums. It can make a baby a little crankier for a few days around when a tooth is coming through. The pattern usually shows up in the daytime too, not only at 2 a.m.

So start with the whole child, not only the night. You might notice your baby gnawing on everything and acting a bit clingy at the park and at dinner, as well as at bedtime. That fits teething. If your baby is eating well and playing as usual during the day but waking more at night, other things may be going on, such as a developmental leap, a schedule that no longer fits, or a habit that has built up.

Teething does not explain everything. Please get a medical opinion rather than adjusting naps or bedtime if you see any of these:

• A significant fever, or a baby who seems very unwell, unusually sleepy, or hard to console
• Ear symptoms, such as pulling at the ear along with fever or ongoing crying
• Changes in feeding, such as refusing feeds, fewer wet diapers, or clear pain when eating
• Vomiting, diarrhea, or a rash that teething doesn't account for
• Any symptom that makes your gut say something is more than teeth

While your baby feels poorly, lean into your ordinary comfort responses: extra cuddles, a soothing voice, a little more time settling. A few difficult nights do not ruin anything.

Some practical things to try:

• Offer a clean, cool washcloth or a solid teether to chew on during the day. Chilled is fine, but avoid freezing it hard.
• Gently rub your baby's gums with a clean finger.
• Ask your pediatrician what pain relief is appropriate for your baby's age and how much to give. Don't guess at medication.
• Avoid unapproved teething remedies and numbing gels. Check with your pediatrician before using anything you haven't been advised on.
• Skip teething necklaces and anything worn around the neck. Take teething toys out of the sleep space before you put your baby down.

Tired nights are when shortcuts start to look tempting, so here is the safe sleep baseline. It stays the same whether or not your baby is teething:

• Place your baby on their back for every sleep, naps included.
• Use a firm, flat, separate sleep surface with no loose bedding, pillows, or bumpers.
• Share your room but not your bed.
• Stop swaddling at the first signs of rolling.
• Dress your baby so they don't overheat.
• Never use inclined or soft sleepers, and don't let your baby fall asleep on a couch or armchair with you.

Keep your familiar bedtime cues in place while your baby is uncomfortable, such as the same bath, book, song, or feed. Add extra comfort on top of the routine rather than replacing it. Babies lean on predictability when they feel off.

Then watch for the discomfort to ease. Once your baby seems well again, you can look at sleep as it is now. Make one change at a time rather than overhauling bedtime, naps, and night feeds all at once. If sleep slowly drifts back toward what it was, you can treat it as a rough patch. If the night waking carries on well after the daytime signs have passed, that's your cue to look at habits, schedule, or development instead of teeth.

If you'd like help sorting out which one you're dealing with, your pediatrician is the place to begin for medical questions.

The best response to a miserable baby is rarely a firmer rule. Help them through it safely, keep the rhythm of your days, and pick the routine back up when they feel like themselves again.