Safe Sleep for Babies: The ABCs of Safe Sleep

Safe sleep is one of the most important topics in infant care. Sudden Unexpected Infant Death (SUID) claims around 3,500 infant lives in the US each year. Following safe sleep guidelines significantly reduces this risk.

The ABCs of Safe Sleep

The AAP summarizes safe sleep with: Alone, on their Back, in a Crib.

A — Alone

Your baby should sleep alone. Room-sharing (keeping the baby's sleep surface in the parents' room) is recommended for at least the first 6 months and reduces SIDS risk by up to 50%. But room-sharing is different from bed-sharing.

B — Back

Always place your baby on their back for every sleep for the entire first year. The "back to sleep" campaign reduced SIDS deaths by more than 50%.

C — Crib

Your baby should sleep on a firm, flat surface specifically designed for infant sleep, with only a fitted sheet.

What Should NOT Be in the Sleep Space

• Pillows
• Loose blankets (use a sleep sack instead)
• Bumper pads (linked to suffocation risk)
• Stuffed animals and soft toys
• Inclined sleepers (multiple recalls following infant deaths)

Temperature and Environment

Keep the room at around 68–72°F. Overheating is a risk factor for SIDS. A pacifier at sleep time is associated with reduced SIDS risk.

Car Seats and Bouncers

Car seats are not safe sleep surfaces outside a vehicle. Always transfer your sleeping baby to a flat sleep surface when you arrive home.

Safe sleep is a gift you give your baby every single night. It doesn't have to be complicated — just consistent.

The Complete AAP Safe Sleep Guidelines (2022 Update)

The American Academy of Pediatrics' 2022 safe sleep guidelines updated and expanded their recommendations. Here is every recommendation:

• Back to sleep for every sleep: Always place baby on their back for naps and nighttime sleep until their first birthday. Once a baby can roll both ways independently, it's okay to let them find their own position — but always start them on their back.
• Firm, flat sleep surface: Use a safety-approved crib, bassinet, portable crib, or play yard with a firm, flat mattress and a well-fitted sheet. No inclined sleepers (Fisher-Price Rock 'n Play was recalled for this reason).
• Keep the sleep area clear: No pillows, blankets, bumpers, positioners, stuffed animals, or wedges. A bare crib is a safe crib. Use a sleep sack for warmth.
• Room-sharing without bed-sharing: The AAP recommends sharing a room (not a bed) for at least the first 6 months, ideally the first year. Room-sharing reduces SIDS risk by up to 50%. The safest setup is a separate infant sleep surface next to the parents' bed.
• Breastfeeding: Breastfeeding (any amount) reduces SIDS risk. If you feed in bed and think you might fall asleep, move your baby to their safe sleep space before you drift off.
• Avoid smoking, alcohol, and drugs: Exposure to cigarette smoke — including secondhand smoke — significantly raises SIDS risk. Alcohol and sedating medications impair a parent's ability to respond to a baby in a shared sleep situation.
• Offer a pacifier: Offering a pacifier at sleep time is associated with reduced SIDS risk. If breastfeeding, wait until it's well established (usually 3–4 weeks) before introducing a pacifier.
• Avoid overheating: Keep the room between 68–72°F. Dress baby in one more layer than you'd be comfortable in. Signs of overheating: damp hair, flushed skin, rapid breathing.
• Tummy time when awake and supervised: Tummy time is essential for motor development — just never for sleep. Aim for 30 minutes total per day in short supervised sessions.
• Avoid commercial devices claiming to reduce SIDS: The AAP recommends against using heart rate monitors, movement sensors, or other devices marketed to reduce SIDS — there's no evidence they work and false alarms can cause unnecessary distress.

What About Bedsharing? Understanding the Risks

The AAP advises against bedsharing due to risk of suffocation, entrapment, and overlay — particularly for babies under 4 months, premature babies, and when parents have consumed alcohol or sedating medications.

If you choose to bedshare despite the guidelines, the SAFE Sleep Seven framework (from La Leche League) identifies conditions that reduce — though don't eliminate — risk: sober, non-smoking breastfeeding mother, healthy full-term baby, on their back, on a safe surface, lightly dressed, no swaddle. This is harm reduction, not a safety guarantee.

When Can Pillows and Blankets Enter the Crib?

Soft bedding becomes less of a suffocation risk once a child has the developmental ability to move their head freely, roll, and push up. The general guidance is after 12 months for a thin blanket, though many pediatricians and safe sleep advocates suggest waiting until 18 months or later. When introducing, use a lightweight blanket and ensure your toddler's crib or bed environment remains otherwise clear.

Frequently Asked Questions About Safe Sleep