Safe Sleep
Safe Sleep Guidelines: Back to Sleep, Crib Safety & Room Temperature
Clear, research-based steps every parent can follow to lower risks, create a safe environment, and help your baby sleep better.
Why safe sleep is non-negotiable
Every year, parents search for the best ways to keep babies safe during sleep. Following simple, consistent safe-sleep practices reduces the risk of Sudden Infant Death Syndrome (SIDS) and other sleep-related injuries. The goal: a safe, comfortable environment where your baby—and you—can rest easier.
Why Back Sleeping Works
- Airway protection: Back sleeping keeps the airway more open and reduces risk of suffocation.
- Reduced rebreathing: Babies on their stomachs may breathe in exhaled carbon dioxide, increasing risk.
- Temperature regulation: Back sleeping helps prevent overheating, another SIDS risk factor.
Back to Sleep, Every Sleep
- Always place your baby on their back for naps and nighttime until their first birthday.
- Once babies can roll both ways, they can stay in their preferred position—but always start on the back.
- Side or stomach sleeping increases risk and should be avoided.
Safe Crib Setup
- Firm, flat mattress with a snug fitted sheet.
- No pillows, blankets, bumpers, or stuffed animals.
- Check crib slat spacing: no wider than 2 3/8 inches (about a soda can).
- Avoid inclined sleepers or positioners—flat is safest.
Sleepwear & Swaddles
- Dress baby in wearable blankets or sleep sacks—never loose blankets.
- Swaddle only until baby shows signs of rolling (~2–4 months).
- Choose breathable fabrics to prevent overheating.
Room Temperature & Air Flow
Keeping the nursery at the right temperature helps reduce SIDS risk and supports better sleep:
- Ideal room temp: 68–72°F (20–22°C).
- Dress your baby in one extra layer than you’re wearing.
- A fan or light air circulation can reduce risks without chilling baby.
- Avoid space heaters, heated blankets, or overdressing.
Room Sharing vs. Bed Sharing
The American Academy of Pediatrics recommends room-sharing without bed-sharing for at least the first 6 months. Place the crib, bassinet, or portable play yard in your room to make night feeds easier—while keeping baby safe in their own sleep space.
Benefits include quicker response times for feeding, reassurance for parents, and reduced SIDS risk. Transition to the nursery when you’re ready—many families do so between 6–12 months.
Different Cultures, Different Norms
Globally, safe sleep looks different: in Japan, co-sleeping on firm mats is common; in Nordic countries, babies often nap outdoors in strollers. What matters is adapting cultural practices to follow core safety principles: firm, flat surface, no soft bedding, and safe temperature.
Top 5 Mistakes to Avoid
- Letting baby nap in car seats, swings, or loungers unsupervised.
- Using weighted blankets or sleep products not approved for infants.
- Over-bundling or overheating the room.
- Placing baby on their side “just for naps.”
- Adding soft toys or bumpers “for comfort.”
Products That Support Safe Sleep
- Breathable crib mattresses: allow airflow and peace of mind.
- Wearable sleep sacks: safe alternative to blankets.
- Video and movement monitors: help parents check in without disturbing baby.
- Room thermometers: ensure safe temperature range overnight.
Progress, Not Perfection
Safe sleep isn’t about creating a perfect environment every second—it’s about consistent good habits. Travel, illness, or growth spurts may cause setbacks. Focus on steady improvement and always return to the basics: back, crib, temperature, consistency.
5 Steps for Safe Baby Sleep
- ✔️ Always place baby on their back to sleep
- ✔️ Use a firm crib mattress with fitted sheet only
- ✔️ Keep crib free of pillows, blankets, and toys
- ✔️ Maintain a room temp of 68–72°F
- ✔️ Practice room-sharing (not bed-sharing) for first 6 months
FAQs
Why is back sleeping safest?
Research shows babies who sleep on their backs have a much lower risk of SIDS compared to stomach or side sleepers.
What if my baby rolls onto their stomach?
If your baby can roll both ways independently, you can leave them in that position. Always start sleep on the back.
Can babies sleep in car seats or swings?
Not recommended for unsupervised sleep. Transfer to a flat, firm surface once home.
Is it safe to use white noise or fans?
Yes, when used safely. White noise can promote sleep; fans improve airflow and may reduce SIDS risk.
Do pacifiers help with safe sleep?
Yes, pacifiers at sleep times have been linked to reduced SIDS risk, though some babies reject them.
How do I know if my baby is overheating?
Check the back of their neck—if sweaty or hot, remove a layer. Cool hands and feet are normal.
Is it safe to travel with portable sleep gear?
Yes, as long as the surface is flat, firm, and free of soft items. Portable cribs and play yards are good options.
This article is for educational purposes only, not medical advice. Always follow current AAP guidelines and consult your pediatrician for your child’s needs.