8-month sleep regression: what is happening and what helps
You had finally started to see some kind of pattern in your baby's nights. Then, somewhere around the six-to-twelve-month mark, the nights got harder again. More waking, harder settling, and an earlier start to the day. It can feel like a step backwards, but it is a normal part of how babies develop. Here is what the NHS says about sleep at this age, what tends to disrupt it, and what you can do to help things settle again.
What the NHS says about sleep in the 6-12 month window
According to NHS guidance, babies between six and twelve months typically need around 15 hours of total sleep across a 24-hour period, with the larger portion happening at night. Night feeds may no longer be strictly necessary for nutrition by this age for some babies, though this varies from child to child.
The NHS is also clear that every baby has their own pattern of waking and sleeping, and that your baby's routine is unlikely to look the same as another baby you know. Comparisons can be reassuring in one direction and disheartening in another, but they rarely tell you much about what is right for your own child.
One of the most important things NHS guidance points out is that you should be prepared to change routines as your baby grows and enters different stages. Sleep is not a straight line upward. It shifts, stalls, and sometimes goes backwards before it improves again.
Why sleep can become more disrupted at this age
The NHS specifically names three things that can affect how your baby sleeps at any point in the first year: growth spurts, teething, and illnesses. In the six-to-twelve-month window, all three can come in quick succession.
- Growth spurts can increase hunger and restlessness, making it harder for a baby to settle and stay settled through the night.
- Teething often begins or intensifies in this period, and the discomfort can disrupt sleep that had previously been going well.
- Minor illnesses such as colds are common once babies become more mobile and start interacting with a wider world. A blocked nose or general unwellness makes sleep harder for anyone, babies included.
Any one of these on its own can be enough to unsettle a baby who had been sleeping reasonably well. When they overlap, the disruption can feel significant. Knowing this does not make the nights any easier, but it does make clear that the disruption usually has a cause and a natural end.
The role of a consistent bedtime routine
NHS guidance places a lot of weight on a calm, consistent bedtime routine as one of the most useful things you can establish. What matters is not so much which activities are included, but that they happen in the same order each evening so your baby begins to associate them with sleep.
The NHS suggests activities such as:
- A warm bath to signal the transition from day to evening
- Changing into nightclothes
- Dimming the lights in the room
- Reading a short story or singing a lullaby
- A quiet cuddle before being placed in the cot
The guidance also emphasises avoiding too much excitement and stimulation just before bedtime. This is worth bearing in mind during a period when your baby may be newly crawling, pulling to stand, or discovering other physical skills that are thrilling during the day but can make wind-down harder in the evening.
How to handle the night environment
During the day, NHS guidance suggests keeping life lively: open curtains, normal household noise, and plenty of interaction. This contrast helps babies begin to understand the difference between day and night.
At night, the principle is the opposite. If your baby wakes and needs attention, the NHS recommends dim lights, quiet voices, and efficient settling without play or conversation. Keeping night interactions low-key and brief signals that night is not the time for stimulation. Over time, this helps many babies learn to resettle more quickly.
When caring for a baby who is waking more frequently, sharing night duties with a partner can make the disruption more manageable. Taking turns means each of you gets a longer stretch of sleep in one go, which is more restorative than many short broken stretches.
Looking after yourself during the disruption
NHS guidance consistently reminds parents to rest when their baby rests, particularly during the day. This is easier said than done when there are other tasks to manage, but even short rests can reduce the accumulation of tiredness over a difficult week.
If the disruption is sustained and is having a real impact on your family's wellbeing, the NHS advises speaking to your health visitor. They are well placed to offer personalised guidance, to check whether teething or illness may be a factor, and to support you in finding an approach that works for your baby.
What is likely to happen next
Sleep at this age is not fixed. The NHS notes that babies past their first birthday typically need around 12-15 hours of sleep, which for many families means longer overnight sleep and a more predictable structure. The period of disruption in the second half of the first year is a stage, not a permanent state.
Routines that feel fragile now often become more robust once the teething episode passes, the growth spurt resolves, or the new physical skill your baby is practising at night becomes second nature. Patience and consistency tend to be the most reliable tools available.
Frequently asked questions
Is the 8-month sleep regression a real thing?
Sleep can become noticeably more disrupted in the second half of the first year. The NHS acknowledges that growth spurts, teething and illnesses can all affect how your baby sleeps, and that parents should expect routines to need adjustment as their baby moves through different stages. A period of harder nights during this time is a recognised part of development, not a sign something has gone wrong.
How much sleep does a baby need at 6-12 months?
NHS guidance indicates that babies in this age range typically need around 15 hours of total sleep across a 24-hour period, with most of it at night. Because every baby has their own pattern, the actual amount your baby needs may differ slightly from this figure.
What can I do to help my baby settle better during this phase?
The NHS recommends a calm, consistent bedtime routine carried out in the same order each night. Useful elements include a bath, changing into nightclothes, dimming the lights, reading or singing, and a quiet cuddle. Keeping the night environment low-key and unstimulating when your baby does wake also helps reinforce that night is for sleeping.
When should I speak to a health visitor about my baby's sleep?
If the disruption is persistent or is significantly affecting you or your baby, the NHS advises getting in touch with your health visitor. They can help identify whether a specific cause such as teething or illness is involved and can offer guidance tailored to your situation.
Does my baby still need to sleep in my room at 8 months?
NHS guidance recommends room-sharing for at least the first six months. After that, the decision is a matter for each family. If you are unsure about the transition or want to talk it through, your health visitor is a good person to ask.
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