By Angelica Videla — Certified Baby and Toddler Sleep Consultant, London | Supporting families across the UK, Europe, US, and Australia
Quick Answer
The 10 month sleep regression is part of the broader 8 to 10 month developmental leap driven by crawling, pulling to stand, and object permanence. It typically lasts 3 to 6 weeks. Sleep often does not return to baseline without addressing the sleep associations that form during the regression — but with a gentle, consistent approach, most families see meaningful improvement within 2 to 3 weeks.
What is the 10 month sleep regression?
The 10 month sleep regression is the later end of what is commonly called the 8 to 10 month regression — a period of significant motor and cognitive development that can disrupt sleep at any point between 8 and 11 months depending on when individual babies hit the relevant milestones.
At 10 months, most babies have mastered or are actively practising crawling and pulling to stand. Object permanence — the understanding that people and objects still exist when they are out of sight — is now well established. This means that when you leave the room at sleep time, your baby knows you are somewhere else and wants you there.
At the same time, the physical excitement of new motor skills does not switch off when the lights go out. Many babies at this age wake in the night practising pulling to stand in the cot, then crying because they cannot get back down.
Signs your baby is going through the 10 month sleep regression
- Sudden night waking after a period of sleeping well
- Standing in the cot and unable to get back down
- Fighting naps that were previously consistent
- Increased separation anxiety during the day
- Taking much longer to settle at bedtime
- Wanting more night feeds despite solid food intake being good
- Early morning waking
How long does the 10 month sleep regression last?
The developmental component of the 10 month regression typically resolves within 3 to 6 weeks. However, sleep does not always return to baseline on its own — the most common reason being that the weeks of disruption have strengthened sleep associations.
A baby who was falling asleep independently before the regression may have spent several weeks being fed or rocked back to sleep every time they woke. By the time the developmental phase passes, those responses have become the new expectation rather than a temporary accommodation.
This is why many families find that sleep is still difficult weeks after the regression should have ended. The developmental leap has passed but the habits it created have not.
With a gentle, consistent approach that addresses both the schedule and the settling pattern, most families see meaningful improvement within 2 to 3 weeks.
What makes the 10 month regression worse
Inconsistent night responses. Responding differently each night — sometimes feeding back to sleep, sometimes not, sometimes coming in immediately, sometimes waiting — teaches your baby that persistence produces different results each time. A consistent, planned response produces faster improvement.
Standing in the cot. Practise lowering from standing during the day — guided repetition until the movement becomes automatic. Most babies master this within 5 to 10 days of focused daytime practice.
Overtiredness from disrupted naps. At 10 months most babies need 2 naps totalling 2 to 3.5 hours, with wake windows of 3 to 4 hours. If the regression has disrupted naps as well as nights, overtiredness compounds the problem. See our 10 month sleep schedule for timing guidance.
Dropping the second nap too early. Nap refusal during the 10 month regression is not a sign of readiness to drop a nap. It is a sign of developmental disruption. Dropping the second nap at this age almost always creates overtiredness that significantly worsens night sleep.
Why this keeps happening even when you try everything
The most common reason the 10 month regression drags on is that families are managing the night wakings without changing what happens at the start of sleep. If your baby falls asleep feeding or being rocked at bedtime, they are almost certainly going to need the same conditions when they surface between sleep cycles overnight.
Addressing night wakings with settling techniques while leaving the bedtime falling-asleep pattern unchanged is the single most common reason sleep support does not stick at this age. The root cause is how your baby falls asleep initially — not what happens at 3am.
How to handle the 10 month sleep regression
1. Check and protect the schedule
Wake windows of 3 to 4 hours, two naps ending by 3:30pm, and a bedtime between 6:30 and 7:30pm. Overtiredness compounds the regression significantly.
2. Practise standing and getting back down during the day
Spend 10 to 15 minutes each day guiding your baby to lower themselves from standing. Most babies master independent descent within a week of consistent daytime practice.
3. Look at how your baby falls asleep at bedtime
This is the most important adjustment. If your baby is fed or rocked to sleep, gently beginning to shift this pattern is the highest-leverage change you can make.
4. Be consistent in your night response
Choose an approach and hold it for at least 5 to 7 days. Consistency matters more than which specific method you use.
5. Get support if needed
If waking has been frequent for more than 3 to 4 weeks, a personalised sleep plan that looks at the full picture can help you resolve it quickly and gently. Start here.
Frequently Asked Questions
How long does the 10 month sleep regression last?
The developmental component typically passes within 3 to 6 weeks. Disruption continuing beyond 6 weeks is usually driven by sleep associations or schedule issues that need gentle active adjustment.
Is there a specific 10 month sleep regression?
The 10 month regression is part of the broader 8 to 10 month developmental window rather than a distinct regression in itself. Whether it hits at 8, 9, or 10 months depends on when your individual baby reaches the relevant developmental milestones.
Should I drop to one nap during the 10 month regression?
No. Most babies are not ready to drop to one nap until 13 to 18 months. Dropping a nap during the regression creates overtiredness that makes sleep significantly worse.
My baby keeps standing in the cot at night — what should I do?
Lay them back down calmly with minimal interaction. The longer-term fix is practising lowering from standing during the day until it becomes automatic. Most babies master this within 1 to 2 weeks of consistent daytime practice.
Will the 10 month regression resolve on its own?
The developmental leap will pass. But sleep associations that form during the regression — needing to be fed or rocked to resettle — are unlikely to resolve without some gentle adjustment to how your baby falls asleep.