🛡️Safe Sleep

Safe Sleep for Babies: The ABCs

SIDS prevention, the ABC safe sleep framework, cot setup, swaddling, and every hazard to remove from your baby's sleep space.

The ABCs of Safe Sleep

Alone

Baby sleeps alone in their own sleep space - No bed-sharing, no siblings, no pets in the cot

Back

Always place baby on their back - Every sleep, every time, until 12 months of age

Crib

Firm, flat, safe surface - Cot, crib, or bassinet. No soft objects inside

A - Alone (in detail)

No adult bedding items should ever be in the crib. Each baby needs their own firm, flat surface separate from any adults or other children. Room-sharing (baby in a bassinet in your room) is encouraged and is not the same as bed-sharing.

B - Back (in detail)

Always for sleep. Tummy time is for when baby is awake and supervised only. If baby rolls onto their tummy independently during sleep (usually around 4 to 6 months when they can roll both ways), you do not need to roll them back. But always start them on their back.

C - Crib (in detail)

Firm mattress and a fitted sheet only. The crib or bassinet should meet current safety standards. In Singapore, look for products that meet HSA requirements. Avoid second-hand mattresses unless they are in excellent condition - evidence suggests re-using old mattresses increases SIDS risk.

Singapore HSA note: Certain cot bumpers and inclined sleepers have been flagged by HSA. Check the product safety recall list at hsa.gov.sg before purchasing.

SIDS risk: Sudden Infant Death Syndrome (SIDS) is rare but the risk peaks at 2 to 4 months. The ABCs are the most effective prevention strategy, alongside breastfeeding (which reduces SIDS risk by roughly 50%) and avoiding smoke exposure.

SIDS in Singapore: What Parents Should Know

SIDS stands for Sudden Infant Death Syndrome. It is the sudden and unexplained death of a baby under 12 months old, usually during sleep. It is rare - roughly 0.2 to 0.4 deaths per 1,000 live births in Singapore - but it is the leading cause of death in babies between 1 month and 12 months in many countries.

Peak age and risk factors

•Peak age is 2 to 4 months. Risk decreases significantly after 6 months.
•Smoking in the home is the biggest modifiable risk factor. Even smoking outside the home increases risk.
•Soft bedding, pillows, or bumpers in the sleep space
•Sleeping on the stomach or side
•Overheating
•Premature birth or low birth weight
•Bed-sharing, especially with parents who smoke, drink, or take sedating medication

Safe sleep reduces SIDS risk by up to 50%. It is the single most impactful preventive action parents can take. Following the ABCs consistently is the best protection available.

Safe Sleep Dos & Don'ts

✓ Do

✓Room-share (not bed-share) for at least 6 months - Reduces SIDS risk
✓Use a firm, flat mattress that fits snugly in the cot with no gaps
✓Dress in one layer - A single cotton onesie is usually enough in Singapore
✓Use a light muslin swaddle for newborns if they prefer being wrapped
✓Offer a pacifier at nap and bedtime once breastfeeding is established (3–4 weeks)
✓Keep the room dark for night sleeps to support circadian rhythm
✓Run a fan or air-con - Room temperature 24–26°C

✗ Don't

✗Pillows, quilts, duvets, or soft toys inside the cot
✗Cot bumpers - Even 'breathable' ones carry suffocation risk
✗Bed-sharing - Risk is significantly elevated, especially with exhausted or medicated parents
✗Letting baby sleep in a bouncer, swing, or car seat outside of the car
✗Positioner wedges or anti-reflux supports inside the cot
✗Weighted blankets or weighted swaddles
✗Sleeping on a sofa or armchair while feeding (the most dangerous surface)

Setting Up a Safe Cot

Mattress

Firm and flat - Should not compress significantly under baby's weight. No memory foam. Fits snugly in the cot frame with no gaps larger than 2 finger-widths.

Sheet

One fitted sheet only - No loose bedding. Tuck the sheet tightly under the mattress.

Inside the cot

Nothing. No bumpers, pillows, stuffed animals, positioners, or blankets. Nothing.

Cot position

Flat surface - No incline. Away from direct fan or air-con airflow. Away from blind cords and electrical cables.

Mattress replacement

Replace if second-hand cot has an old mattress - Evidence suggests re-use of old mattresses increases SIDS risk.

Cot height

Highest mattress setting for newborns. Lower as baby begins to pull up, before they can lever themselves out.

Swaddling Safety

Swaddling is safe when done correctly and only while baby cannot roll. In Singapore's heat, use a single thin muslin swaddle.

Safe swaddling rules

✓Hips loose - Hip dysplasia risk if legs are forced straight
✓Thin muslin fabric only - No fleece or thick fabric in Singapore's heat
✓Snug at the chest, not the legs
✓Baby placed on back - Always
✓Never put a swaddled baby face-down
✓Stop swaddling as soon as baby shows rolling signs

When to stop swaddling

Stop the moment your baby shows any sign of rolling - Typically around 3–4 months. A rolling baby in a swaddle cannot push up to free their airway if they end up face-down.

Transition: arms-out swaddle → sleep sack → nothing needed in Singapore's heat.

Room Temperature and Overheating

Singapore is hot and humid. Overheating is a real SIDS risk factor. Air-conditioning is safe to use and helps maintain a safe sleep environment.

Recommended environment

✓Room temperature 24 to 26°C
✓Ceiling fan or air-conditioning is fine
✓Do not point the fan directly at baby
✓One thin cotton onesie or bodysuit is usually enough
✓No hat indoors - babies regulate temperature through their head
✓A rough guide: dress baby in one more layer than you are comfortable in

Signs of overheating

!Sweaty hair on the back of the head
!Flushed or red face
!Rapid breathing
!Damp neck
!Feels hot to the touch on the chest or back

If baby feels hot, remove a layer. Check for fever (38°C or above) and see a doctor.

What Not to Put in the Crib

None of these should ever be in the sleep space with a baby under 12 months:

✗Pillows - never, not even flat infant pillows
✗Bumper pads - including mesh or "breathable" bumpers. They are not evidence-based and HSA advises against them.
✗Soft toys, stuffed animals, or comforters
✗Loose blankets or duvets
✗Positioner wedges or sleep shapers
✗Sleep wedges or inclined sleepers - these have been recalled in multiple countries including the US and UK
✗Weighted blankets or weighted swaddles

The crib should contain only baby and a fitted sheet. That is all. It can feel bare. That is the point.

Room-Sharing vs Bed-Sharing

Room-sharing (recommended)

Baby sleeps in your room but on their own surface - a bassinet, cot, or bedside sleeper. Recommended for the first 6 months at minimum.

✓Reduces SIDS risk by up to 50%
✓Makes night feeds and monitoring easier
✓Practical in Singapore HDB flats

Bed-sharing (higher risk)

Baby sleeps in the same bed as a parent or adult. Carries higher risk, especially in certain conditions.

•Higher risk for babies under 4 months
•Higher risk if parent smokes or drinks
•Higher risk on soft mattresses with heavy bedding

If you choose to bed-share, discuss the Safe Sleep Seven framework with your paediatrician first.

Singapore HDB context: Many families room-share because of limited flat size. This is actually the recommended approach and works well with a bedside bassinet or co-sleeper that attaches to the bed.

When Can Babies Use a Pillow or Blanket?

Pillow

Not before 2 years old. Babies and toddlers under 2 do not need a pillow and the soft surface creates a suffocation risk. In Singapore's heat, a pillow also increases overheating risk.

Blanket

A loose blanket in the crib is not recommended before 12 months. Safer alternatives:

✓A sleep sack (wearable blanket) is the safest option. Use a thin cotton one in Singapore.
✓From 12 months, a light thin blanket is lower risk but a sleep sack is still safer.
✓18 to 24 months is when most paediatricians consider a blanket low risk.

Talking to Your Confinement Nanny About Safe Sleep

Confinement nannies play a big role in newborn sleep in Singapore. Many families rely on them for overnight care in the first few weeks. This is where safe sleep conversations matter most.

What to discuss before the nanny arrives:

•Always place baby on their back to sleep - not on the tummy, even if baby seems to sleep better that way
•No pillows, bolsters, or rolled towels in the cot
•No sleeping in the swing, bouncer, or rocker for overnight sleep
•Your preferred room temperature and clothing layers
•Be clear that these are your family's rules, not optional preferences

Good news: Most professional confinement agencies in Singapore are now familiar with current safe sleep guidelines. If your nanny is from a reputable agency, ask whether they have received safe sleep training. Many have.