After an hour of sushing and rocking, the newborn is finally asleep. You slowly lower them into the bassinet. Suddenly, they jolt awake. Sound familiar? Most newborns resist the bassinet at first, and there are real, research-backed reasons for it. Thankfully, there are also ways to help them stay settled. 

These are the simple techniques that can make a big difference, fast. Start by properly and safely swaddling the baby. Transfer them while they’re drowsy but before they are fully asleep. Use white noise and build a simple routine to reduce surprises. Finally, make sure the bassinet is not cluttered with pillows and blankets, and the sheet has been warmed.

• Swaddle first. Containing the startle reflex is the single biggest sleep disruptor to solve.
• Transfer drowsy, not asleep. Put the baby down before they fully drift off.
• Use white noise. Keep it low, 30+ cm from the baby, never inside the bassinet.
• Warm the sheet. A cold surface is a common, easy-to-fix wake trigger.
• Keep the bassinet bare. One fitted sheet only, no extras.
• Build a simple routine. Consistency trains a baby's developing brain.

Why Does My Baby Wake Up the Second I Put Them Down?

Babies are born with a strong startle reflex called the Moro reflex.

According to NCBI StatPearls, the Moro reflex is a normal, involuntary motor response. When a baby feels a sudden change in position (like being set down), their arms dramatically fling outward, and they often cry.

It begins fading around 12 weeks and typically disappears by 6 months. Until then, every bassinet transfer can trigger it.

What Makes the Moro Reflex Worse?

• Temperature drops when leaving a warm chest for a cool sheet
• The speed of the transfer
• Ambient sounds or light changes
• Placing the baby in a completely still environment after being held and rocked

How Can I Make Bassinet Transfers Easier?

Help is at hand. Combine these simple techniques to manage the Moro reflex and make transferring your baby much easier. 

1. Swaddle Before the Transfer

Swaddling is one of the most well-researched tools for newborn sleep. A study in PMC found that swaddled newborns had significantly longer periods of deep sleep and fewer spontaneous arousals. Swaddling prevents the arm-flinging that triggers the Moro reflex. It also makes babies feel like they’re still safely tucked in mom’s arms. 

Safe swaddling rules:

• Snug around the chest, loose around the hips. Tight leg wrapping is linked to hip dysplasia
• Baby is always on their back while swaddled
• Stop as soon as the baby shows any rolling signs, usually around 3 to 4 months
• Never use weighted swaddles. The AAP advises against these.

2. Put Baby Down Drowsy, Not Asleep

Waiting until the baby is fully asleep often backfires. When they cycle into light sleep during the transfer, the change in environment wakes them.

Experts recommend putting the baby down when drowsy but not yet asleep. Over time, this helps them learn how to fall asleep in their own sleep space.

Baby Sleep Cue Reference

Watch for these cues and use them to time your bassinet transfer:

3. Use White Noise at a Safe Volume

The womb is a loud place. So silence can actually feel unsettling to many newborns

A 2025 meta-analysis in Sleep Medicine confirmed that white noise extends total sleep time and reduces nighttime awakenings in infants.

But volume and placement are 

Use it safely:

Keep the machine at least 30 cm (12 inches) away from the bassinet

• Never place it inside the sleep space
• Use low volume, think background hum, not loud

4. Warm the Sheet Before the Transfer

Lying a baby against a cold sheet is a very common, very fixable wake trigger. 

Before the transfer, place a warm (not hot) water bottle or heating pad on the sheet for a few minutes. Remove it completely before placing the baby down. The sheet should feel comfortably warm to your hand.

5. Build a Simple Sleep Routine

Newborns are not born with a working circadian rhythm. According to research in the Journal of Clinical Sleep Medicine, melatonin and stable sleep patterns do not begin emerging until around 9 weeks of age.

You cannot force a schedule in the early weeks. But you can begin layering in simple, repeatable cues that signal sleep is coming.

A basic two-step routine that works:

All you need is one or two consistent cues to build an association over time. 

• Dim the lights and reduce noise 10 to 15 minutes before sleep
• Feed, then swaddle in the same order every time

What Does A Safe Sleep Setup for Newborns Look Like?

No soothing technique works if the sleep environment is not safe. Always start with the  AAP 2022 Safe Sleep Guidelines.

How Can I Help My Baby Feel Safe Enough to Sleep?

The bassinet struggle is one of the most universal parts of new parenthood. Your baby is not being difficult. They are adjusting to a world that feels entirely new.

Every technique here works by solving a specific, real reason babies resist the bassinet: the startle reflex, the temperature drop, the sensory shift, the missing routine. Work through them one by one. Consistency beats perfection every time.

And when you are setting up that sleep space, one thing that is genuinely worth getting right is what your baby's skin is actually resting on for hours at a stretch.

Make the Bassinet a Place Your Baby Wants to Be

Joey & Joan fitted sheets are made from 100% OEKO-TEX certified jersey cotton, sized to fit specific bassinet, crib, and playard models, because a sheet that truly fits stays flat, stays safe, and does not disrupt sleep. Browse the full collection at joeyandjoan.com/collections/all.

Frequently Asked Questions

Q1: Can I use a pacifier to help my baby settle in the bassinet?

Yes. Pacifier use at nap and bedtime is linked to reduced SIDS risk. If breastfeeding, wait until feeding is established first. Never attach it to clothing during sleep.

Q2: My baby has reflux. Can they still sleep on their back in the bassinet?

Yes. The AAP is clear that even babies with gastroesophageal reflux disease (GERD) should still sleep flat on their backs. The gag reflex prevents choking. Inclined sleepers are not safe and are on the AAP’s list of products to avoid.

Q3: How warm should the room be for bassinet sleep?

A comfortable room temperature is the target. Dress the baby in one more layer than you are wearing. Watch for sweating or flushed cheeks as signs of overheating.

Q4: What is the 4-month sleep regression, and will my baby refuse the bassinet again?

Around 4 months, a baby's sleep architecture shifts from newborn patterns toward more adult-like cycles. This causes a temporary rise in night wakings, but it is completely developmental. The habits you build now will make it much easier to ride out.

Q5: How much total sleep should my newborn be getting in a day?

The target is 14 to 17 hours per 24-hour period, in stretches of 1 to 4 hours for newborns. Remember that irregular sleep in the early weeks is completely normal.

Sources

• Moro Reflex - A National Library of Medicine Article on the Moro Reflex in newborns 
• Impact of swaddling techniques in enhancing sleep patterns among newborns - A study on the effects of swaddling on newborn sleep. 
• Impact of white noise on sleep quality across age groups and in critically ill/non-critically ill patients - A systematic review and meta-analysis of randomized controlled trials - A Meta-analysis of the affect of white noide on sleep quality of different age groups. 
• PERSPECTIVE: The Long-Term Effects of Light Exposure on Establishment of Newborn Circadian Rhythm - A Journal of Clinical Sleep Medicine article on how light can affect newborn sleep.
• How to Keep Your Sleeping Baby Safe: AAP Policy Explained - A HealthyChildren.org article breaking down AAP sleep guidelines.