Teething can significantly disrupt your baby’s sleep, causing more frequent night wakings, shorter naps, and difficulty falling asleep. The discomfort from teeth pushing through the gums tends to feel worse at night, when there are fewer distractions and your baby is already tired. The good news is that each tooth’s most disruptive phase typically lasts only a few days, and there are safe ways to ease your baby through it.
Why Teething Pain Gets Worse at Night
During the day, babies are stimulated by play, feeding, sounds, and movement. All of that sensory input acts as a natural distraction from gum discomfort. At night, those distractions disappear. Your baby becomes more aware of the soreness, pressure, and inflammation in their gums right when they need to be winding down.
Exhaustion compounds the problem. A tired baby has fewer coping resources, so the same level of discomfort that barely registered during a busy afternoon can feel overwhelming at bedtime. This combination of heightened awareness and fatigue is the main reason teething seems to hit hardest between evening and early morning.
What Teething Sleep Disruption Looks Like
Not every rough night is teething. But when a tooth is actively moving through the gumline, you’ll often notice a cluster of changes happening together. Your baby may resist going down at their usual bedtime, fuss or cry shortly after falling asleep, or wake multiple times through the night needing comfort. Naps can shorten too, sometimes to 30 or 40 minutes instead of the usual stretch.
Other signs that point to teething rather than illness include excessive drooling, chewing on fingers or toys, swollen or red gums, and general irritability during the day. You might also notice your baby’s temperature creeps up slightly. According to the Cleveland Clinic, teething can raise body temperature a bit above the normal 98.6°F (37°C), but it will not reach the fever threshold of 100.4°F (38°C) or higher. If your baby’s temperature hits 100.4°F or above, that signals an infection, not teething, and needs medical attention.
How Long the Disruption Lasts
Most babies start teething around 6 months, though it can begin as early as 4 months or as late as 12 months. The worst sleep disruption for each tooth typically spans a few days before and after the tooth breaks through the gum surface. Once the tooth is through, sleep usually returns to its previous pattern relatively quickly.
That said, babies get 20 primary teeth over roughly two years, so teething disruptions come in waves. The lower front teeth tend to arrive first, followed by the upper front teeth, then the molars. Molars, with their larger surface area, often cause more discomfort and longer disruptions than the smaller front teeth.
Safe Ways to Help Your Baby Sleep
The safest and most effective approaches focus on physical comfort rather than medication. A cold teething cloth placed on the gums before bed can numb the area gently. If your baby wakes during the night, light pressure on the gums or a gentle gum massage with a clean finger can soothe them back to sleep without fully waking them up.
Building a calming pre-sleep routine also helps. A warm bath, a bedtime massage (with or without a mild lotion), and low-volume white noise can all ease the transition to sleep. These create a sense of security that helps your baby settle despite the discomfort.
If your baby seems especially miserable, a dose of acetaminophen before bed can take the edge off. HealthyChildren.org, the parent-facing site of the American Academy of Pediatrics, notes that moderate use is considered safe, though frequent or prolonged use can cause health problems. A single nighttime dose on the worst days is a reasonable option to discuss with your pediatrician.
Products to Avoid
Numbing gels and teething tablets are widely available, but both the FDA and the AAP warn against using them. The risks are serious enough that this is worth understanding clearly.
Topical gels containing benzocaine (sold over the counter for oral pain) have been linked to methemoglobinemia, a condition where red blood cells lose their ability to carry oxygen effectively. It can be fatal. On top of the safety risk, these gels wash away quickly with drool, so they offer little actual relief. Products containing lidocaine, a prescription numbing agent, carry their own dangers for infants, including seizures, heart problems, and severe brain injury if too much is swallowed.
The FDA has stated plainly that these products “can be dangerous to children and can lead to serious injury, and even death.” Homeopathic teething tablets fall into the same warning category. Stick with the physical comfort measures and, when needed, pediatrician-approved pain relief.
Should You Pause Sleep Training?
If you’re in the middle of sleep training when a tooth starts coming in, you don’t necessarily need to abandon your approach. Consistency still matters, and throwing out your routine entirely can create new sleep associations that are harder to undo once the teething passes.
The practical middle ground: continue putting your baby down the way you normally would, but add a little extra comfort as needed. A brief pat or gentle stroke while they’re in the crib gives reassurance without fundamentally changing the routine. The key is to layer comfort on top of your existing approach rather than replacing it. Once the tooth breaks through and the discomfort fades, you can pull back the extra soothing without having to retrain from scratch.
If your baby is in serious distress, of course respond to that. A few nights of more hands-on comfort during a painful teething episode won’t undo weeks of progress. Babies are resilient, and most return to their usual sleep patterns quickly once the acute discomfort passes.
Teething vs. Other Causes of Night Waking
It’s tempting to blame every bad stretch of sleep on teething, but babies wake for many reasons: growth spurts, developmental leaps, hunger, schedule changes, or illness. A few signals can help you tell teething apart from other causes.
- Teething: You can see or feel swollen gums, your baby chews on everything, drooling increases, and the disruption lasts only a few days per tooth.
- Illness: A true fever (100.4°F or higher), vomiting, diarrhea, or a runny nose point toward infection rather than teething.
- Sleep regression: If night waking coincides with a new skill (rolling, crawling, pulling to stand) and lasts one to three weeks without gum symptoms, a developmental leap is more likely.
Getting the cause right helps you respond appropriately. Teething discomfort benefits from gum pressure and cold; a developmental regression benefits from patience and consistency; illness needs medical evaluation.