Teething and Sleep: What Actually Helps

Teething is one of the most common explanations parents reach for when their baby's sleep goes sideways. And it makes intuitive sense — teeth pushing through gums sounds painful, so of course it would wake a baby up. But the research paints a more nuanced picture than most people expect.

A systematic review by Massignan et al. (2016) examined the evidence on teething symptoms and found that they are generally mild and self-limiting, peaking in the few days immediately surrounding each tooth eruption. The discomfort tends to be concentrated in a window of roughly three to five days — the days before and the day or two after the tooth breaks through the gum.

This matters because many parents attribute weeks of sleep disruption to teething, when in reality the acute discomfort from any single tooth is relatively brief. If your baby has been unsettled for two or three weeks straight and you're thinking "it must be teething," it's worth considering whether something else might also be going on — a developmental regression, an illness, a schedule that needs adjusting, or a shift in sleep associations.

That's not to say teething doesn't affect sleep at all. It can. Gum sensitivity, increased drooling, and general irritability around eruption time are real. But the impact tends to be milder and shorter-lived than the reputation suggests — and understanding this helps parents respond appropriately rather than waiting out a problem that might not actually be teething.

When a tooth is actively erupting, you might notice some genuine signs of discomfort. The gum tissue becomes red and swollen as the tooth pushes through, and your baby may be fussier than usual, drool more, and want to chew on things. Some babies have a slightly raised temperature — though crucially, this is a mild increase, not a true fever.

Most babies begin teething around six months, though the range is enormous — some babies are born with teeth, while others don't begin until well past their first birthday. The bottom incisors usually appear first, followed by the top incisors. First molars (around nine to thirteen months) and second molars (around twenty-three to thirty-three months) tend to cause more discomfort due to their larger surface area.

Between eruptions, there are typically pain-free periods. A baby who is chronically unsettled with no teeth actively pushing through is unlikely to have teething as the primary cause. The pattern to watch for is a few rough days concentrated around a specific eruption, followed by a return to normal.

At night, some parents notice an extra wake or two, or a baby who is harder to settle than usual. This is reasonable to attribute to teething when it coincides with visible gum changes and resolves once the tooth breaks through. What's less reasonable is attributing months of poor sleep to a process that's only acutely uncomfortable for a few days at a time.

This is the part that really matters for your baby's safety. The NHS states clearly that certain symptoms are NOT usually caused by teething — and assuming they are can delay getting the right help.

Teething does not typically cause:

• Fever of 38 degrees C or above — a mild temperature increase is possible, but a true fever suggests illness, not teething. This always warrants medical assessment.
• Diarrhoea or vomiting — despite what many people believe, these are not teething symptoms. They suggest a stomach bug or other illness.
• A runny nose or cough — these are signs of a respiratory infection, not oral inflammation from a tooth.
• A rash that doesn't look like drool rash — drool rash appears around the chin and mouth; other rashes need investigation.
• Persistent high-pitched crying or lethargy — these are potential signs of something more serious and need urgent assessment.

The timing of teething — typically starting around six months — coincides with the period when maternal antibodies begin to wane and babies are increasingly exposed to viruses, especially if they're in childcare. This means genuine illness often overlaps with teething, and one can easily be mistaken for the other.

If your baby has a fever, is refusing feeds, seems unusually lethargic, or has any symptoms beyond mild gum discomfort and fussiness, please speak to your GP, health visitor, or call NHS 111. It's always better to check than to assume it's "just teething."

When teething discomfort is genuinely the issue, there are some evidence-based approaches that can help — and some popular ones that are ineffective or outright dangerous.

What the evidence supports:

• A clean, cooled teething ring — cooled in the fridge, not the freezer (frozen items can damage gums). Counter-pressure on the gums can relieve discomfort.
• Gently rubbing the gum with a clean finger — the pressure can provide temporary relief.
• Age-appropriate pain relief — if your baby seems in genuine pain, speak to your pharmacist or GP about options suitable for their age. We signpost to medical professionals for all medication guidance.
• Extra comfort at bedtime — a bit more cuddle time in the routine is completely appropriate when your baby is uncomfortable. This won't "undo" good sleep habits.

What doesn't help — or is dangerous:

• Amber teething necklaces — there is zero scientific evidence that succinic acid is released at body temperature or has any pain-relieving effect. The FDA has documented infant deaths from strangulation and choking on broken beads. The Lullaby Trust advises against any items around a baby's neck during sleep. These are not safe.
• Teething gels containing benzocaine or lidocaine — the NHS advises against these for babies due to the risk of numbing the throat and affecting swallowing.
• Homeopathic teething products — no evidence of efficacy, and some have been recalled for containing harmful substances.

Teething is a normal developmental process — not a medical condition. But there are times when what looks like teething warrants a medical conversation.

Contact your GP, health visitor, or NHS 111 if:

• Your baby has a temperature of 38 degrees C or above — this is not a teething symptom and needs assessment, especially in babies under three months (where any fever is treated as urgent).
• There is persistent ear-pulling with fever — while ear-rubbing can occur during teething due to referred pain from the gums, a combination of ear-pulling and fever may suggest an ear infection.
• Your baby is refusing feeds for more than a day or showing signs of dehydration.
• The fussiness persists for more than a week without a tooth appearing — something else may be causing the discomfort.
• You're unsure whether the symptoms are teething or illness — it's always better to check. No GP will think you're wasting their time by asking.

If you're concerned about your baby's health, speak to your GP or health visitor. This is sleep support, not medical advice — and anything that looks like it could have a medical cause needs a medical professional.

None of this is to dismiss teething pain. It's real, and watching your baby in discomfort is genuinely difficult. The helplessness of seeing your child hurt and not being able to instantly fix it is one of the hardest parts of early parenthood.

But teething has become a catch-all explanation for every unsettled night, and that can actually work against families. When weeks of sleep disruption get attributed to teething, the real cause — whether that's a developmental regression, an overtired schedule, an illness that needs treating, or a sleep association that's become unsustainable — goes unaddressed.

The pattern to look for is brief disruption concentrated around a visible eruption, followed by a return to baseline. If sleep has been poor for weeks and there's no tooth in sight, teething is probably not the primary driver — and understanding what is can help you get back on track much faster.

Teething will pass. Each tooth erupts, the gum heals, and the discomfort resolves. Most babies handle it with minimal fuss. For the rougher eruptions, a cooled teething ring, some extra comfort, and appropriate pain relief (via your pharmacist or GP) will see you through.

And if teething has genuinely disrupted your baby's sleep and you're not sure how to get things back to normal, personalised support can help you work out what's teething, what's something else, and what to do about it.