Most babies can safely move to a crib in their own room between 6 and 12 months of age. The American Academy of Pediatrics recommends keeping your baby’s sleep area in your bedroom for at least the first 6 months, and ideally for the full first year. That said, many families make the transition closer to the 6-month mark, and there are good reasons why that timing works well for both baby and parent.
Why 6 Months Is the Key Milestone
The main reason pediatricians want your baby sleeping near you early on is SIDS risk. Seventy-two percent of all SIDS deaths happen between months 1 and 4, and more than 90% occur before 6 months of age. After 8 months, SIDS becomes uncommon, though safe sleep practices still matter through the first birthday.
Room sharing (not bed sharing) during those high-risk early months appears to have a protective effect. Your baby should be on a separate, firm sleep surface like a crib, bassinet, or play yard placed close to your bed. The AAP is clear that sharing a room is not the same as sharing a bed, which carries its own risks.
What Happens to Sleep Quality After 6 Months
A large study published in Pediatrics tracked babies who moved to their own room at different ages and found meaningful differences in how well everyone slept. At 4 months, babies sleeping independently already had slightly longer uninterrupted sleep stretches, averaging about 7 hours and 49 minutes compared to 7 hours and 3 minutes for room-sharing babies. They also had fewer overnight feedings.
By 9 months, the gap widened. Babies who had been sleeping in their own room since before 4 months got roughly 40 more minutes of nighttime sleep than babies still room sharing. Their longest unbroken sleep stretch averaged about 9 hours, compared to around 7 hours and 22 minutes for room sharers. Even at 30 months, children who had transitioned to independent sleep by 9 months were sleeping 45 more minutes per night than those who were still room sharing at that age.
This doesn’t mean you’re harming your baby by room sharing longer. But if disrupted sleep is becoming a problem for your family, the evidence suggests that moving your baby to their own room after 6 months can lead to longer, more consolidated sleep for everyone.
The Effect on Parents
Room sharing takes a toll on parental sleep too, and that matters more than many families realize. Mothers who room share tend to have reduced sleep quality and duration compared to those whose babies sleep in a separate room. A population-level study found that mothers who room shared had higher odds of reporting postpartum depression symptoms, even after researchers accounted for other health and demographic factors. The effect was modest (about 11 to 15 percent higher odds), but it reinforces something parents often feel guilty admitting: your own sleep matters, and protecting it isn’t selfish.
If you’re approaching 6 months and finding that every small noise from your baby’s bassinet jolts you awake, or that you’re responding to sounds your baby would have slept through on their own, those are signals worth paying attention to.
How to Make the Transition Smooth
A gradual approach tends to work better than a sudden switch. Start with daytime naps in the crib for a week or two so your baby gets familiar with the new space without the added challenge of nighttime darkness and your absence. Some parents begin with just one nap per day in the crib and build from there, letting the baby get comfortable with a few minutes at first, then full nap stretches.
When you’re ready to move nighttime sleep to the crib, don’t rush out of the room the moment you put your baby down. Sit near the crib while they settle, then gradually increase the distance over several nights. One night you might be right next to the crib. A few nights later, you’re by the door. Eventually, you’re placing your baby down and leaving while they’re drowsy but still awake. This gradual retreat gives your baby time to learn the new environment feels safe.
Keeping the bedtime routine identical helps too. If you normally do bath, feeding, a book, and then sleep, doing all of that the same way but ending in the new room signals to your baby that the expectations haven’t changed, just the location.
Setting Up the Room Safely
Before the first night, make sure the nursery meets safe sleep standards. The crib should have a firm, flat mattress with a fitted sheet and nothing else: no pillows, blankets, stuffed animals, or bumper pads. Dress your baby in a sleep sack if you’re worried about warmth rather than using a loose blanket. If your baby feels sweaty or their chest is hot to the touch, they’re overdressed.
If you’re using a baby monitor, place it and any cords at least 3 feet away from the crib. This is a commonly overlooked hazard. Monitor cords can pose a strangulation risk, so mount the camera on a wall or set it on a dresser well out of reach.
Breastfeeding and Room Sharing
One concern parents have about moving baby to another room is that it might affect breastfeeding. The proximity of room sharing does make nighttime feedings easier, and research shows babies who sleep closer to their mothers tend to breastfeed slightly longer. In one study, room-sharing babies breastfed for about 5 weeks on average, while bed-sharing babies (which is not recommended for safety reasons) breastfed for about 6 weeks.
However, the difference between room sharing and separate room sleeping is manageable. Many mothers continue breastfeeding successfully after moving the baby to their own room by keeping a comfortable chair in the nursery for nighttime feeds. The transition doesn’t have to mean the end of breastfeeding, just a slightly different logistics setup.
Signs Your Baby Is Ready
Beyond the 6-month minimum, a few practical signs can help you gauge readiness. Your baby is likely ready if they’ve outgrown their bassinet, if they’re rolling well in both directions, if they can settle themselves back to sleep after brief wakings, or if their sleep (and yours) is clearly being disrupted by sharing a room. Some babies start sleeping more lightly around 4 to 6 months as their sleep cycles mature, which means your movements and sounds wake them more easily.
There’s no single “right” night to make the switch. Some families move baby at 6 months and never look back. Others wait until closer to a year because the arrangement is working. Both are fine. The 6-month mark is the floor for safety, not a deadline, and the first birthday is the ceiling of the AAP’s recommendation, not a requirement. Your family’s sleep quality, living situation, and comfort level all factor into the decision.