Can Twins Share a Crib? | Safe Sleep Answers

If you’re expecting twins and wondering whether they can share a crib, the short answer from the American Academy of Pediatrics (AAP) is no. The AAP recommends that each infant — including twins and other multiples — sleep on a separate, firm, flat surface. This means two cribs, bassinets, or play yards, even though those little bundles have spent months sharing a much tighter space.

Here’s what the guidance says, why it differs from advice elsewhere in the world, and how to set up safe sleep for your twins.

What Does The AAP Say About Twins Sharing A Crib?

The AAP’s safe sleep guidance is clear and applies equally to twins. Babies should always sleep on their backs, on a firm, flat, noninclined surface, in a clutter-free crib, bassinet, or play yard.

The AAP does not recommend bed-sharing “under any circumstances,” and that includes twins sharing a crib. The same guidance that says a baby should sleep alone in their own space — free of blankets, pillows, bumpers, and stuffed animals — applies to each twin individually. Sharing a crib would mean two babies on one sleep surface, which the AAP advises against.

The AAP’s safest recommendation is room-sharing: keeping your twins in the same room as you for the first six to twelve months, but each in their own crib or bassinet. This arrangement lowers the risk of sleep-related infant deaths while still keeping them close for feeding and monitoring.

Do Other Countries Allow Co-Bedding Twins?

Yes, and this is where guidance diverges. The UK’s National Health Service (NHS) says twins can share a single cot while they are small enough, a practice called co-bedding. The NHS says this is safe if standard safe-sleep advice is followed, such as placing babies on their backs and keeping the cot free of loose bedding.

The UK charity Twins Trust likewise says twins can share a full-sized cot when very young, provided there’s enough clear space and good airflow. However, both organizations advise moving twins into separate sleep spaces as soon as either baby starts rolling or when there’s no longer enough room.

For a U.S. audience, the AAP’s more conservative approach is the governing authority. Technical-report language linked to the AAP says it’s prudent to provide separate sleep areas and avoid co-bedding for twins and higher-order multiples, both in the hospital and at home.

What Are The Common Mistakes To Avoid?

The risks with co-bedding twins come from crowding and unsafe add-ons. Avoid these common pitfalls:

• Never share a Moses basket, bassinet, or bedside crib meant for a single baby — these spaces are too small for two.
• Skip the DIY dividers. Rolled-up blankets, towels, pillows, or cot dividers have no place in a crib meant for twins.
• Stop co-bedding the moment movement begins. As soon as either twin starts rolling or moving around, they need separate spaces.
• Keep the surface firm and flat. Soft surfaces, couches, and armchairs are extremely risky for infant sleep.
• Watch for overheating. No loose bedding means no blankets or quilts; dress twins in sleep sacks instead.

If you’re considering a next-to-me or bedside crib, it must be securely attached to the adult bed with no gaps, and large enough for separate sleep spaces with proper airflow. Most bedside cribs are sized for one infant, so this option rarely works for twins.

The Final Verdict On Twins And Crib Sharing

For U.S. families, the answer is straightforward: twins should sleep in separate cribs, bassinets, or play yards from day one. Room-sharing with you, but not with each other, is the safest arrangement.

If you’re buying gear for twins and want cribs that work well side by side in one nursery, our roundup of the best cribs for twins compares top-rated options by safety, size, and value.

When you do set up two cribs, place each baby on their back with a firm, fitted mattress and nothing else in the crib. Keep the room cool, use a sleep sack instead of blankets, and you’ve built the safest possible sleep environment for your twins.

FAQs

Is co-bedding twins ever safe?

UK guidance from the NHS and Twins Trust says co-bedding is safe for very young twins who aren’t yet rolling, if the cot is large enough and standard safe-sleep rules are followed. U.S. guidance from the AAP is more conservative and recommends separate sleep surfaces for all infants, including twins.

What size crib do twins need if sharing?

Twins Trust says a full-sized cot can work for two very young babies if there’s enough clear space and air can circulate freely. However, two full-sized cribs side by side offer more room and follow U.S. guidance. Separate cribs are the safest arrangement.

When should twins stop sharing a crib?

If you follow UK guidance and co-bed, move twins to separate sleep spaces as soon as either baby starts rolling or moving around the cot.