Are split nights disrupting your baby’s sleep – and yours? If your little one wakes in the early hours of the morning and stays awake for a long time before falling back asleep, you’re not alone. Split nights can be a common sleep issue for babies and toddlers, but with the right approach and support, they can be resolved.
Let’s break down what causes split nights in babies and how you can gently adjust their sleep patterns to get everyone back to restful nights.
What are split nights?
Split nights happen when a baby or toddler wakes up for an extended period in the middle of the night, often for 1 to 2 hours, before going back to sleep. Unlike brief night wakings, these episodes can leave both parents and little ones exhausted.
Your child might be:
- Happy and alert, ready to play
- Restless or frustrated
- Wide awake, even though it’s still night
No matter the behavior, the result is the same: interrupted sleep for the everyone.
What causes split nights in babies?
1. Sleep pressure and circadian rhythm
Two major sleep factors can contribute to split nights:
Circadian rhythm: Our natural body clock tells us when to sleep and wake based on light and dark.
Sleep pressure: This is the build-up of tiredness over the day that helps babies fall asleep and stay asleep.
If your baby’s daytime sleep isn’t aligned with their natural rhythm or if they don’t build enough sleep pressure, split nights can occur.
2. Daytime sleep schedule
A poorly timed nap schedule is one of the most common triggers for split nights. This could mean:
- Too many naps during the day
- Not enough awake time between naps and bedtime
- Too little daytime sleep, causing overtiredness
Here’s a general guide to total sleep needs by age (including naps):
Age Total sleep (24 hrs) Naps per day
0-3 months 16-18 hours 4-5 naps
4-5 months 15 hours 3-4 naps
6-7 months 14-15 hours 2-3 naps
8-12 months 14 hours 2 naps
13-30 months 12-13 hours 1 nap
3-5 years 10-13 hours 0-1 nap
6-12 years 9-12 hours No naps
💡 Tip: If your baby is suddenly waking for long stretches at night, check if their nap schedule needs an update. Transitioning from 3 naps to 2, or 2 naps to 1, can reduce split nights.
Developmental milestones can trigger split nights
Babies often experience split nights when they hit major milestones, like crawling, standing, or walking. These new skills can cause extra brain activity at night, leading to wakefulness.
If this is the case:
- Offer lots of active play and practice during the day.
- At night, gently guide your baby back to sleep, without introducing new sleep associations like rocking or feeding.
What to do about split nights
Here’s how to gently guide your baby out of a pattern of split nights:
- Adjust nap lengths and timing to fit their age and sleep needs.
- Increase awake time before naps or bedtime to build enough sleep pressure.
- Limit stimulation before bed. Use a consistent bedtime routine.
- Avoid new sleep associations (like feeding back to sleep) during night wakings.
- Give it time. It may take a few days to a week for your baby’s body clock to adjust.
When to be patient
Sometimes, split nights are temporary and linked to:
- Illness or teething
- Growth spurts
- Travel or schedule changes
In these cases, once your baby is well or back on routine, split nights should resolve naturally.
Don’t forget…
Split nights are frustrating but fixable. By tuning into your baby’s sleep cues and making small daytime adjustments, you can help reset their natural rhythm and encourage uninterrupted sleep. Every baby is different, so be patient and consistent.
If you need help, get in touch, we’d love to get your whole family sleeping better!
