SAFER SLEEP & FRESH AIR CHECKLIST FOR PARENT + BABY
Adjacent sleeping keeps babies warm, safe and supports development.
Better air supports better sleep for you and your baby.
Better sleep = better mental and physical health.
Creating a safe sleep space for your baby isn’t just about positioning and surfaces, it also includes the air they breathe. Following La Leche League International’s Safe Sleep 7 helps reduce risk, while keeping your bedroom well-ventilated supports better sleep for both parent and baby.
Overnight, closed rooms can trap exhaled air, raising carbon dioxide (CO₂) levels and making sleep feel heavier or causing people to jolt awake, and is less restorative. Research suggests that keeping indoor CO₂ levels below ~1000 ppm (ideally closer to 400–800 ppm) is associated with fresher air, better sleep quality, and improved alertness.
Simple steps…like cracking a window, keeping a door slightly open, or using a quiet fan…can maintain gentle airflow without disturbing your baby. The goal is a room that feels fresh, not stuffy, while still meeting all safe sleep guidelines.
Small changes in air circulation can make a meaningful difference in how well everyone rests...and how clearly you function during those nighttime wakeups.
🌙 BEFORE SLEEP
🛏️ Safe Sleep Setup (Safe Sleep 7)
☐ I am a non-smoker
☐ I am sober and unimpaired (no alcohol, drugs, sedating meds)
☐ I am breastfeeding
☐ My baby is healthy, full-term
☐ Baby sleeps on their back
☐ Baby is lightly dressed (not overheated)
☐ Sleep surface and parent pillows are firm, flat, and away from baby
🌬️ Air Quality Check
☐ CO2 measurement device reads 800ppm or below (max 1000)
☐ Room does not feel warm and heavy
☐ No strong odors (stale air, cooking, smoke)
☐ Air is moving slightly (fan or airflow present)
Fresh Air & Ventilation
☐ Window slightly open or door partially open
☐ Air is not stuffy (room feels fresh when entering)
☐ Fan or HVAC is circulating air gently, possible fan can pull air out window or door
☐ Baby’s sleep space is not in a corner with stagnant air
🌙DURING THE NIGHT
Comfort + Safety Check
☐ Baby’s head and face stay uncovered
☐ No soft items near baby’s face
☐ Adult bedding stays away from baby
☐ Neither Baby nor Parents jolting awake/suddenly waking
MORNING CHECK
Parent Well-being
☐ I did not wake with headache, heavy grogginess or dry mouth
☐ Room does not feel stale in the morning
👶 Baby Check
☐ Baby did not appear overheated or sweaty
☐ Baby’s sleep space remained clear and safe
🎯 SIMPLE TARGETS
• Keep air feeling fresh (not sealed or stuffy)
• Can see baby’s entire face at all times
• Avoid fully closed rooms with no ventilation
• Small airflow (window crack, door open, fan) = better sleep quality
QUICK TIPS
• Even a 1–2 inch window opening helps
• If windows stay closed → run HVAC fan continuously
• Use a fan for gentle air mixing
• More people in room = more need for fresh air
• Each seasonal change → check CO2 levels based on how open house is & different HVAC setting
Compiled by Ziah McKinney, Board Certified Patient Advocate, BADT Full Spectrum Doula, Lactation Consultant, Evidence Based Birth Childbirth Educator, April 13, 2026
ReSources
llli.org/breastfeeding-info/safe-sleep-7-infographic/
www.tandfonline.com/doi/full/10.1080/14733315.2020.1777003#d1e481A
