Safe sleep checklist: the ABCs of lowering SIDS risk

The ABCs are a simple memory aid for the core of the American Academy of Pediatrics' safe-sleep guidance: a baby sleeps Alone, on their Back, in a bare Crib. Alone means on their own separate surface — a crib, bassinet, or play yard — ideally in your room but never in your bed, on a couch, or in an armchair with someone. Back means placed fully on their back for every nap and every night, not on the stomach or side. Crib means a firm, flat surface that meets current safety standards, holding nothing but a fitted sheet: no pillows, loose blankets, crib bumpers, sleep positioners, or stuffed toys. Around those three sit the protective habits — a smoke-free environment, offering a pacifier at sleep, breastfeeding if you can, staying up to date on immunizations, not overheating, and regular prenatal care. This checklist walks through all of them and flags the ones that matter most.

Three carry the most weight, and this tool leads with them: placing baby on their back for every sleep, keeping the sleep space bare (no pillows, blankets, bumpers, or soft toys), and never bed-sharing — always giving baby their own firm, flat surface. Back sleeping alone is the single most effective thing you can do, and it's why the "Back to Sleep" message became the centerpiece of safe-sleep campaigns. Removing soft bedding takes away a leading cause of sleep-related suffocation, and avoiding bed-sharing — especially on couches and armchairs, which are the most dangerous places to fall asleep with a baby — removes another. The other steps genuinely help too, but if you only lock in three, make them these. None of them requires special equipment; they're about position, surface, and what's in the space.

The AAP recommends room-sharing without bed-sharing — baby on their own separate surface, in your room, close to your bed — for at least the first 6 months, and up to a year if you can, because it's linked to lower risk and makes night feeds and comforting easier. Bed-sharing (baby sleeping on the same surface as an adult) and, even more so, sleeping with a baby on a couch or armchair, raise the risk of sleep-related death, so the safest choice is always to place baby back on their own surface for sleep. The realistic guidance many parents get is that if you're feeding at night and worried you might doze off, it's safer to do it in an adult bed cleared of pillows and soft bedding than on a sofa — but the goal is still to move baby to their own crib or bassinet once they're done. Bed-sharing is especially hazardous, and best avoided entirely, when a baby is under about 4 months old, was born preterm or at a low birth weight, when anyone smokes (including during pregnancy), or when a parent has had alcohol or any sedating drug — and never with pillows or soft bedding. If you have questions about your specific situation, your baby's pediatrician is the person to ask.

No — and some can make sleep less safe. The AAP advises against home heart or breathing monitors marketed to reduce SIDS risk (they haven't been shown to prevent it), and against products like sleep positioners, wedges, crib bumpers, and inclined sleepers, several of which have been linked to infant deaths. There is no gadget that substitutes for the basics. The things that actually lower risk are free: back sleeping, a bare and firm sleep surface, room-sharing without bed-sharing, a smoke-free environment, and the other habits in this checklist. If a product claims to prevent SIDS, treat that claim with skepticism and check whether it meets current federal safety standards — and when in doubt, ask your pediatrician rather than the packaging.

No. This is a preventive checklist, not a medical assessment, and safe sleep lowers the risk of SIDS and sleep-related death — it can't remove it entirely. Following every step is genuinely the most powerful thing within your control, and it's worth doing at every single sleep, but no checklist, product, or monitor can promise an outcome. Think of it as stacking protective habits, not earning a guarantee. It also can't replace your baby's pediatrician: bring any worries — about breathing, reflux, prematurity, or your specific setup — to well-child visits, where a clinician can weigh your baby's full picture. And if your baby is ever in distress right now — not breathing, hard to wake, blue or grey, or choking — that's a 911 emergency, not something to check against a list.

Yes. This checklist runs entirely in your browser: the boxes you tick are handled on your own device and are never sent to a server, and nothing is saved by default — close the tab and it resets. Because it's the kind of thing you might want waiting next time, you can opt in to save your progress, and then only the list of items you've ticked is stored in this browser's local storage — nothing identifying, and never uploaded. A visible "Delete my data" button erases it whenever you want, and saving stays off unless you choose it. We treat pregnancy and newborn information as sensitive by default. What you get back is general, preventive information based on published AAP, NICHD, and CDC guidance — not medical advice, a diagnosis, or a substitute for your baby's pediatrician.