Why is my 12 month old suddenly waking at night?
Night waking around 12 months usually comes from new motor skills, separation anxiety or a day schedule that no longer fits, often on top of a baby who still needs help falling back asleep. It settles best once your baby can fall asleep independently and the day fits their age. A Actually Sleeping plan written for your one-year-old covers all of it.
The usual causes
- New motor skills. Pulling up, standing and cruising get practiced in the crib in the middle of the night.
- Separation anxiety. According to the AAP, separation anxiety begins in the second half of the first year and can cause many nights of disrupted sleep. It usually fades around the second birthday.
- A nap change that does not fit. A one-year-old who refuses a nap for a few days is not always ready to drop it. Dropping too early can leave an overtired baby who wakes more at night.
This is where Actually Sleeping comes in. Dr. Sam writes a plan for your one-year-old that covers nights, naps and the nap schedule together, and you are coached hard before night one, so you go in confident.
Why it does not always pass on its own
Separation anxiety can last months, not days. Meanwhile, new habits form fast at this age. Extra rocking, a return to night feeds or bringing your baby into your bed to get through a rough week can quickly become what your baby expects every night. One-year-olds also notice inconsistency and test it. A baby who never learned to fall asleep independently has nothing to fall back on when a new skill or a wave of anxiety arrives.
Why a one-year-old needs a plan built for them
Every toddler’s mix is different: how they fall asleep now, how many naps they take, daycare or a nanny, siblings, temperament and how strongly they protest. A previously good sleeper who has slipped needs a different plan from a baby who has never slept independently. Generic advice treats them the same.
How Actually Sleeping handles it
We work with babies and toddlers from newborn on. You get a plan written by Dr. Sam, bootcamp-style coaching before the first night, daily 1:1 check-ins, and naps coached until solid, including through nap transitions. Night feeds are never forced out of the plan. The result is guaranteed: “We guarantee that your baby will sleep 8–12 hours through the night within 14 days of consistent, correct implementation of your sleep plan.” If not, you get a full refund.
See what other parents say in our reviews from families of 10 to 12 month olds, then book a free consultation and tell us what nights look like now.
Want this fixed for your baby?
Actually Sleeping is 1:1 coaching: a sleep plan written for your baby by Dr. Sam, bootcamp-style coaching before the first night, and daily check-ins until it is working. 700+ families coached, 129 video reviews, and a written guarantee: 8–12 hours through the night within 14 days, or a full refund.
Frequently asked
How long does the 12 month sleep regression last?
Waking from a new skill is often short-lived. The AAP notes that separation anxiety can disrupt sleep for months and usually fades around the second birthday. If waking has become a nightly pattern, a Actually Sleeping plan written for your one-year-old addresses it.
Should my 12 month old be on one nap?
It depends on your baby. Dropping to one nap too early is a common cause of overtired night waking, so a few days of nap refusal is not always a sign it is time. Dr. Sam sets nap timing in the plan, and daily check-ins adjust it through the transition.
Is my 1 year old teething?
Maybe. If you think teething pain is the problem, ask your pediatrician or pharmacist what is safe for comfort. Waking that follows the same pattern night after night for weeks usually has more to do with how your baby falls asleep, which a Actually Sleeping plan can change.