Seed to Sleep

Blog · 1 December 2025

Why Is My Baby Moving So Much at Night?

Why Is My Baby Moving So Much at Night? Understanding Fidgety Sleep in Babies

If your baby tosses, turns, kicks, or flails while sleeping, you’re not alone and in most cases, it’s completely normal. Babies are active sleepers, especially in the early months, and their little bodies are hard at work growing, developing, and adjusting to the rhythms of sleep.

So, why does your baby move so much in their sleep? Let’s explore the causes, when it’s normal, when to be concerned, and how to support more restful, less disrupted sleep for your little one.

🌙 Babies Move in Their Sleep And It’s Often Totally Normal

One of the most common reasons your baby is moving around at night is simply because of dream activity.

All humans cycle between two types of sleep:

  • NREM (Non-Rapid Eye Movement): Deep, restorative sleep when the body is still and relaxed.
  • REM (Rapid Eye Movement): A more active stage of sleep when the brain is busy and dreams occur.

Babies spend a lot of time in REM sleep much more than adults which is why you might see your baby wriggling, kicking, or making facial movements during sleep. This stage supports cognitive and neurological development, so it’s an essential (and fidgety) part of their growth.

👶 Why Do Newborns Move So Much in Their Sleep?

In addition to REM sleep, newborns have an involuntary reflex called the Moro Reflex, which causes them to startle, jerk, or twitch during sleep. This can happen in response to:

  • Loud noises
  • Sudden movements
  • Changes in position
  • Even their own motion!

You might notice your newborn’s arms flailing or legs kicking without warning. This is completely normal and a result of their immature nervous system.

Swaddling is a great way to reduce the impact of the Moro Reflex just be sure to stop swaddling as soon as your baby shows signs of rolling, usually around 2 months. You can read more about swaddling and newborn sleep in our infant sleep guides.

⚠️ Other Reasons a Baby Moves in Their Sleep

While most night-time movement is normal, there are a few rare exceptions to be aware of:

😧 Night Terrors

More common in toddlers and older children, night terrors can occasionally occur in babies. Your baby might thrash, cry, or appear distressed but not fully awake. Don’t wake them just stay nearby and gently keep them safe until it passes.

😨 Nightmares

Nightmares may begin as early as 6 months but are more typical closer to age 2. If your baby wakes up crying and can’t be soothed easily, they may have had a bad dream.

🦵 Periodic Limb Movement Disorder (PLMD)

This rare condition causes rhythmic jerking of the legs every 20–40 seconds during sleep. If it’s frequent or disrupts your baby’s sleep, speak to your paediatrician.

🦶 Restless Leg Syndrome (RLS)

Also rare in infants, RLS can cause discomfort and leg kicking during rest. If your baby seems to rub or reach for their legs, or tosses and turns excessively, consult your healthcare provider.

🤔 Should You Move Your Baby During Sleep?

It depends.

If your baby:

  • Has rolled onto their tummy but can’t yet roll back on their own, gently place them back on their back.
  • Is old enough to roll both ways and is sleeping safely, there’s no need to reposition them even if they look a bit uncomfortable. It’s likely they’ll shift again if needed.

Remember the ABCs of Safe Sleep:

  • Alone in their own crib or bassinet
  • Back to sleep every time
  • Crib free of pillows, blankets, and toys

If your baby is following safe sleep guidelines and seems content, it’s best not to disturb their rest.

💤 How to Help a Fidgety Baby Sleep Better at Night

If your baby’s movements seem to be interfering with their sleep, here are some gentle strategies to promote better rest:

🛏️ Create a Sleep-Friendly Environment

  • Keep the room dark (use blackout curtains)
  • Maintain a cool temperature (20–22°C / 68–72°F)
  • Use a white noise machine to block out background sounds

🍼 Try Dream Feeding

For babies still waking to feed, a dream feed can help them sleep longer stretches. This involves gently feeding your baby while they’re still semi-asleep read more in our sleep guides.

📖 Establish a Consistent Bedtime Routine

Repetition and predictability help babies wind down. Try:

  • A warm bath
  • Gentle massage
  • A book or lullaby
  • Cuddle time
  • Keep the routine calm, and do it in the same order every night.

👀 Watch for Sleepy Cues

Responding early to signs like:

  • Yawning
  • Rubbing eyes
  • Staring into space can help you get your baby down before they become overtired which often leads to more restless sleep.

⏰ Follow an Age-Appropriate Sleep Schedule

Your baby’s sleep needs change rapidly during the first year. Wake windows stretch, naps consolidate, and bedtime shifts.

We can help guide you with customised schedules check out our sleep support packages or book a free call below.

📱 Avoid Screens Before Bed

Screens emit stimulating blue light that can delay melatonin production. Keep screens away at least an hour before bedtime for baby and for you!

🧸 Final Thoughts

Baby sleep isn’t always still and silent and that’s okay. Movement during sleep is often a normal, healthy part of your child’s development. Whether it’s due to REM sleep, the Moro Reflex, or simply adjusting to the world, your baby’s night-time wiggles are usually nothing to worry about.

With safe sleep practices and a nurturing environment, you’ll help your baby get the restful, restorative sleep they need.

If you’re unsure where to start, I invite you to explore my sleep support packages. I also offer comprehensive sleep guides covering newborns through to toddlers so you have everything you need for a restful night.

Not sure which option is right for you? Book a free 15-minute call with me, and we’ll find the best fit for your family’s sleep needs.

I’m here to help please don’t hesitate to reach out!