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Note: I use the terms “co-sleeping” and “bed-sharing” interchangeably except where otherwise indicated.


Like many parents, we began co-sleeping by necessity. Most women find that they bring the baby into the bed to nurse, and keep falling asleep; it’s easier and safer to plan for bed-sharing than for it to happen inadvertently. We were a little different, however.

Because of reflux and other health problems, my son had trouble gaining weight. A different pediatrician probably would have called it “failure to thrive.” We wanted him to nurse often at night, and sleeping next to me seemed a good way to do that.

It worked. Mosko, Richard, and McKenna proved that arousals are greater between bed-sharing pairs, meaning that these co-sleeping mothers and babies half-wake more often than mothers and babies who sleep apart. My son and I used these arousals to latch him to the breast more often. As time went on, he learned to latch himself; this is common among bed-sharing pairs.

In fact, James McKenna of the Notre Dame Mother-Baby Sleep Laboratory argues that frequent arousals are good for babies, because they promote what’s really important in the first year of a baby’s life: breastfeeding.

This isn’t to bash formula feeding. Far from it. But Dr. McKenna, like Dr. Bill Sears, argues that breastmilk is best for babies. And when you talk about safe co-sleeping, you talk about breastfeeding.

Co-sleeping promotes breastfeeding

Dr. McKenna claims that babies will “breastfeed more often, with less disruption to mother’s sleep” when bed-sharing. This, he says, “can also be translated into less disease and morbidity.” Basically, the more babies breastfeed, the more likely they are to reap the benefits of breastfeeding, which include, according to a position paper of the journal Pediatrics, improved developmental outcomes, a decrease in the incidence and severity of numerous infectious diseases (including among middle-class populations of developed countries), a decrease in SIDS and lower risk of diabetes. It’s been associated with a slight increase in intelligence (a claim now controversial), and numerous maternal health benefits, including a decrease in breast cancer, ovarian cancer, and hip fractures in postmenopausal women.

Of course, breastfeeding is a choice. But it’s a choice many mothers are making. In 2013, according to the CDC, 81.1% of American mothers began to breastfeed, and 60.6% were still breastfeeding at six months. In the US, only 12.8% of parents bed-share (though 45% of infants spent some time in an adult bed in the last two weeks).

That could account for the precipitous drop between breastfeeding initiated and breastfeeding continued at six months: no one wants to get up, go to a crib, pick up a baby, nurse her, put her back to sleep, and go back to bed every two hours, the normally cited time between breastfed baby feeds.

Formula, according to “Night Waking: Will I Ever Get a Good Night’s Sleep Again?” forms larger curds in the baby’s stomach. This means it take longer to digest, and hence formula-fed babies can go longer between feedings (the typical four-hour schedule) than their breastfed counterparts. 

Basically, the closer you sleep to your baby, the easier it is to breastfeed. As Dr. McKenna says, “Proximity, of course, makes it more likely and possible that more interaction will take place between the mother and infants during the night, including more breastfeeding.” Mother and baby will move towards each other, even in sleep; babies – like my son – will learn to latch themselves. (This is partly why, according to breastfeeding website Kellymom, mother and baby both tend to get more sleep while co-sleeping). All this nursing helps maintain mother’s milk supply, especially if she works and is away from baby for significant amounts of time every day.

There’s even a name for this: reverse cycling. Basically, when baby is separated from mother all day, he makes up for it by nursing more at night than he eats during the day. This can be frustrating, since baby’s up nursing over, and over, and over, but lets baby get the nutrients he needs, and the mama time he craves.

Co-sleeping is biologically normal

As attachment expert Tami Breazeale says in “Co-Sleeping,” the practice of mothers and babies sleeping separately is both a recent and a Western one. Dr. McKenna notes in “Co-sleeping Around the World” that “for the overwhelming majority of mothers and babies around the globe today, co-sleeping is an unquestioned practice.”

This remains the case in much of Southern Europe, Asia, Africa, and Central and South America. Some cultures bed-share; others co-sleep with a bassinet or hammock in the room. Using CDC data from 1981, McKenna says that 68% of American babies co-sleep at some point, and 26% “always” or “almost always.”

Breazeale notes that co-sleeping is almost 100% in “classic studies which included more than 200 cultures… including the Japanese, the Korean, the Phillipino, the Eskimo Indian, the !Kung San of Africa, and the natives of Okinowa.” She also says that only 48% of kibuttzum children, who saw their parents for four hours a day and slept with age-mates, had a secure attachment to their mothers.

The human baby, McKenna says, depends on care from the mother. For the infant, co-sleeping represents “a form of expected physiological regulation and support.” Indeed, he says:

“Infants require this contact and proximity especially because of nutritional needs (breastfeeding) but also because of the immaturity of their thermo-regulatory, immune, and cardio-respiratory systems, in addition to their dependence on touch, all systems closely tied together to promote efficient functioning of all of the infant’s immature organs and the central nervous system in general.”

The infant breathing system, both voluntary and autonomic, is not fully matured at birth, and especially functions immaturely during sleep. The human infant’s physiology,, McKenna says, “is not designed to function optimally outside the context by which usually the breastfeeding mother can compensate for the infants developmental (neurological) vulnerabilities.” Basically, babies are biologically hardwired to sleep next to a breastfeeding mother, with whom they can sync breathing, heart rate, and more.

Who gets more sleep?

According to Kellymom, generally the Internet go-to for breastfeeding information, co-sleeping parents get more sleep than parents who don’t share the same sleep surface. And who doesn’t want more sleep? Families who sleep together end up sharing the same sleep rhythms. Dr. Jay Gordon recounts James McKenna watching mother-father-baby trios at the Notre Dame sleep laboratory fall in and out of sleep at the same time: stirring and moving simultaneously.

Researchers at East Tennessee State University proved, with 33 first-time mother-baby dyads, that while breastfed babies got less total sleep, breastfeeding mothers got more over a 24-hour period. Both mother and baby remained in a lighter stage of sleep, enabling arousal to nurse, and acting as a protective buffer against adverse sleep events. The researchers have proven what mothers have known since the dawn of time: co-sleeping mamas get more sleep.

Is co-sleeping safe?

A 2014 study in the journal Pediatrics, claims that 69% of infants who died of SIDS were bed-sharing at the time. However, the study doesn’t account for the type of sleep surface; couches and recliners are perilously dangerous for sleeping infants. Nor did it evaluate each situation for a safe sleep environment. Were there heavy pillows and blankets around the infant? Was entrapment between mattress and wall an issue? The study doesn’t distinguish between responsible co-sleepers and parents inebriated with alcohol or drugs. Nor does it account for cigarette smoking in the home (a known SIDS risk factor). So while the study might immediately frighten bed-sharing parents, there are too many holes to make a determination of the data.

A British study did find that bed-sharing was still a SIDS risk when the parents didn’t smoke, drink, or use drugs. But again, the same problems exist with the study. Safe sleep environment and sleep location make a crucial difference when determining the safety of co-sleeping.

And co-sleeping is safe. McKenna and Gettler say because breastfeeding is a protective factor against SIDS, “safe bed-sharing may actually exert a protective effect against SIDS.” Mothers sleeping next to their babies, they argue, and breastfeeding, is “an evolved suite of behaviors tracing humans’ phylogentic roots as both primates and mammals.”

We evolved to breastfeed and co-sleep, and evolution wouldn’t favor a practice that led to the sudden and inexplicable death of infants. Dr. Sears agrees, and notes that countries with high co-sleeping rates have the lowest rates of SIDS. He also says that “infants who sleep near to parents have more stable temperatures, regular heart rhythms, and fewer long pauses in breathing compared to babies who sleep alone. This means baby sleeps physiologically safer.”

The American Academy of Pediatrics actually recommends co-sleeping, defined as the caregiver sleeping in the same room as the infant, albeit on a separate sleeping surface from the parent. This, they’ve found, is a certain protection against SIDS. They still recommend against bed-sharing, but, as McKenna and Gettler note, “epidemiological studies reveal inconsistent findings as to whether or not, to what degree, or under what circumstances bed-sharing represents a consistent risk factor for SIDS.”

What is a safe co-sleeping environment?

James McKenna details, on his website, what makes for a safe bed-sharing setup. First, the mattress must be dropped to the floor, making it only a few inches high. It also must be pulled away from the wall, to prevent movement and entrapment. Parents should dress warmly, to use as few covers as possible, and the covers they use should be light and airy, not heavy comforters. One pillow is allotted per person, and the bed must remain free of toys, stuffed animals, etc. He recommends that other children and pets remain out of the bed, and that siblings certainly never sleep next to the baby.

When our new baby came home from the hospital, we had already dropped our mattress and pulled it away from the wall. We had a queen-sized mattress with a twin-sized sidecar, because we knew how many people were getting in there. Each person was allotted one pillow. My husband slept on the single bed, and in the middle of the night, our older sons, then two and four, crept in to cuddle with him. I slept on the far side of the queen bed with the baby cradled on my arm. We slept with light covers up to our waists.

You’ll find as many co-sleeping environments as you find families. However, by and large, planned bed-sharers – as opposed to those who bed-share accidentally, say by falling asleep while nursing – follow the rules. They may sneak in an extra pillow, or let their dog in bed, but they mostly adhere to the common sense guidelines laid out by Dr. McKenna.

Is co-sleeping right for you?

Most importantly, co-sleeping is safe. But it also affords more sleep for a breastfeeding mother, remains the biological norm in many parts of the world, and actually encourages nursing – a protective effect against SIDS. While Dr. McKenna recommends against bottle-feeding mothers bed-sharing, since they don’t seem to share the same biological rhythms as their babies, for nursing mothers, co-sleeping seems the best choice.

As long as the family maintains a safe sleep environment, we can ignore the public service campaigns. If mama and daddy are both in agreement, co-sleeping is probably the best choice for their family. And that’s something we can all sleep on.

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Whether you're filling out your own registry or shopping for a soon-to-be-mama in your life, it can be hard to narrow down what exactly new moms need (versus what will just end up cluttering the nursery). That's why we paired up with the baby gear experts at Pottery Barn Kids to create a registry guide featuring everything from the gear you'll use over and over to the perfect gifts under $50.

Check out the picks below, and happy shopping (and registering)!

MUST-HAVE BABY GEAR

These five gift ideas are designed to make #momlife easier while solving some of the most common parenting dilemmas.

1. Doona All-In-One Infant Car Seat/Stroller

One of the first things you learn when you become a mom? Those infant car seats are heavy. Which is what makes the Doona All-In-One Infant Car Seat/Stroller so genius. It's the world's first completely integrated mobility solution, quickly transforming from safe car seat to functional stroller without any extra parts. Simply pop out the wheels, pull up the handle bar, and you're ready to roll.

Doona All-in-one Infant Car Seat / Stroller, $499

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GIFTS THAT CAN BE PERSONALIZED

Even the most utilitarian gift feels a little more special with some personalization. Here are some of our favorite options that can be customized with baby's name or monogram.

1. Nursery Blankets

You'll never forget the blanket you bring your newborn home in. And with Pottery Barn Kids' assortment of blankets, there's a wrap to suit every new mama's style. Choose from fuzzy neutral patterns or stylish printed options, and add baby's name for an extra personal touch.

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GIFTS THAT GROW WITH THEM

Save money and space by gifting items that will last long after baby's first year. These clever gift items will have mama saying "thank you!" for years to come.

1. west elm x pbk Mid-Century Convertible Crib

A convertible crib is an investment in years of sweet dreams. We love this mid-century-style option made from sustainably sourced wood with child-safe, water-based finishes. When your baby outgrows their crib (sniff!), it easily converts into a toddler bed with the matching conversion kit.

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GIFTS UNDER $50

Sometimes the littlest gifts mean the most. Here are our favorite gifts under $50 they'll be sure to cherish.

1. west elm x pbk Dot Muslin Swaddle Set

When you're raising a newborn, you can never have too many swaddles. Perfect for naptime, burp cloths, stroller covers, and spontaneous play mats, a muslin swaddle will always come in handy. And we especially love this neutral patterned collection in platinum, nightshade, and peacock.

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Learn more and explore all Pottery Barn Kids' registry must-haves here.

In the moments after we give birth, we desperately want to hear our baby cry. In the middle of the night a few months later it's no longer exactly music to our ears, but those cries aren't just telling us that baby needs a night feeding: They're also giving us a hint at what our children may sound like as kindergarteners, and adults.

New research published in the journal Biology Letters suggests the pitch of a 4-month-old's cry predicts the pitch they'll use to ask for more cookies at age five and maybe even later on as adults.

The study saw 2 to 5-month olds recorded while crying. Five years later, the researchers hit record again and chatted with the now speaking children. Their findings, combined with previous work on the subject, suggest it's possible to figure out what a baby's voice will sound like later in life, and that the pitch of our adult voices may be traceable back to the time we spend in utero. Further studies are needed, but scientists are very interested in how factors before birth can impact decades later.

"In utero, you have a lot of different things that can alter and impact your life — not only as a baby, but also at an adult stage," one of the authors of the study, Nicolas Mathevon, told the New York Times.

The New York Times also spoke with Carolyn Hodges, an assistant professor of anthropology at Boston University who was not involved in the study. According to Hodges, while voice pitch may not seem like a big deal, it impacts how we perceive people in very real ways.

Voice pitch is a factor in how attractive we think people are, how trustworthy. But why we find certain pitches more or less appealing isn't known. "There aren't many studies that address these questions, so that makes this research especially intriguing," Hodges said, adding that it "suggests that individual differences in voice pitch may have their origins very, very early in development."

So the pitch of that midnight cry may have been determined months ago, and it may determine part of your child's future, too. There are still so many things we don't know, but as parents we do know one thing: Our babies cries (as much as we don't want to hear them all the time) really are something special.

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They say there's no use in crying over it, but for pumping mamas, spilled milk is a major upset.

When you're working so hard to make sure your baby has breast milk, you don't want to lose a drop, and Chrissy Teigen knows this all too well.

The mom of two posted a video to social media Wednesday showing her efforts to rescue breastmilk from a tabletop. She used various utensils and a syringe to try to get the milk back in the bottle.

"I spilled my breastmilk and this is how important it is in this house," she says while suctioning up milk with what appears to be a baster.

In a follow-up video Teigen continues to try to rescue the spilled milk.

"We're trying," she says as she suctions up a drop or two. "I got some."

Teigen is currently breastfeeding baby Miles, her son with husband John Legend, and has been very public about the fact that she pumps a lot as a working mom.

She's also been open about the fact that milk supply has always been an issue for her, not just with Miles but with Luna, too.

"I actually loved [pumping] because I'm a collector of things, and so when I found out I could pump I [did it] so much because I knew the more you pumped, the more milk you'd make," she told POPSUGAR back in March. "So I loved collecting my breast milk and seeing how much I could get, even if it was very, very little."

Like a lot of moms, Teigen did struggle emotionally when a pump session wouldn't get her the ounces she wanted.

"I wasn't producing a lot of milk, and it was frustrating. When you're frustrated, [it can also make you] not produce that much."

Research backs her up. Stress has been linked to lower milk production. Because of that, she's trying to stay positive this time around, but captioned her video post "EVERY DROP COUNTS IN THIS HOUSE" because, well, they do.


So many mothers can relate. Have you ever tried to save your breastmilk?

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What is it about networking that's just kind of...awful? Typically inconvenient and often awkward, formal networking events rarely yield the results most women (and especially mamas) are looking for.

Whether you're reentering the workforce post-baby leave or simply looking to make a complicated career switch as a busy mom (or just struggling to juggle play dates and professional meetings), making the right connections is often a hurdle that's difficult to surmount. And more and more often, networking comes up short in providing what moms really need.

When time is truly at a premium—a session swapping business cards can be hard to prioritize. Shapr wants to change all that.

Designed with busy people in mind, Shapr is an app with an algorithm that uses tagged interests, location, and professional experience to match you with 10-15 inspiring professional connections a day. You swipe to indicate interest in networking with any of them, and if the interest is mutual, you're connected. (But don't worry, that's where the similarities to that dating app end.)

It makes it easier to connect with the right people.

From there, you can chat, video conference, and even meet in person with potential mentors, partners, and investors while growing your real-life network. No more wasting hours trying to pick someone's brain only to discover they don't have the right experience you need. And no more awkward, stilted small talk—even suggests a few preset icebreakers to help get the conversation rolling more quickly.

The best part? You could do virtually all your connecting from your couch post-bedtime.

It simplifies switching careers or industries.

Sysamone Phaphone is a real mom who was fed up with traditional networking options. When she quit her full-time job in healthcare to pursue founding a startup, she quickly realized that in-person networking events weren't only failing to connect her to the right people, they were also difficult for a single mom of two to even attend. "I was complaining to a friend that I was so tired and didn't know how I was going to keep doing it this way when she recommended the Shapr app," Phaphone says. "I tried it right there at dinner and started swiping. [Later], in my pajamas, I got my first connection."

From there, Phaphone was hooked. Her network suddenly exploded with developers, potential partners she could work with, and even people to hire for the roles she needed. She was also able to connect with and empower other women in tech. Now, checking in with Shapr connections is just part of her routine. "I look for connections after drop-off at school and on my commute into the city," she says. "Then after bedtime is done, I go on to check if there is anyone I've connected with."

It helps you find a mentor—no matter where they live.

Another common roadblock Shapr removes? Location. While you probably wouldn't fly to LA from New York for a networking event, the Shapr app lets you connect and chat with the person who best meets your needs—regardless of where they're based. Even better for parents, the "mom penalty" many women contend with when trying to get back into the workforce doesn't exist on Shapr—if you have the right experience, the connections will still come.

To connect, simply create your account, enter up to ten hashtags you want to follow (either industry related like #film or #tech or by person you're seeking, such as #developer or #uxui), preset what you're looking for (investors, collaborators, etc.), and indicate how you prefer to meet. To connect with more people at once, Shapr also has community groups within the app around interest topics that you can join. And even though the connection begins in the digital space, it often results in the in-person experiences mamas crave.

"I wish I could encourage more moms and dads to use it because it has been a lifesaver for me," Phaphone says. "It empowered my career and career choices, and it provides so much convenience. I can put my kids to bed and not go to an event, but still meet 20 people in a night."

For women looking to grow their business, position, or simply achieve a little self-growth, Shapr is changing the way we connect. This powerful new app could change everything, mama. Download it today to get started.

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