How To Get Your Newborn Baby To Sleep Through The Night: Applying Dr. Karp’s Five S’s

Almost two years ago, when my second son was born my wife and I had an extremely difficult time getting him to sleep through the night.

My wife would go to bed and I would keep him in one of those infant car seats where he would sleep for a half an hour and then start to cry. I would rock him, swing him, and do almost everything to get him to fall back asleep only to have him wake up again an hour later.

This would go on almost every night since he was about two weeks old. By the time my son was about seven weeks old, I was going out of my mind. I went on to to look for some sort of book on stress relief and relaxation to help me calm myself. The strange thing is that when I did a search for these books I found Dr. Harvey Karp’s book “The Happiest Baby on the Block”.

The reviews on Amazon convinced me right away that this book was for me. That same day I ran to the local bookstore and bought it. When I got home, I started reading and reading for at least an hour ignoring everyone. I was so eager to learn what I could to start applying the techniques. After reading enough from the book, I took my son, swaddled him, put him in a baby swing, and turned the stereo on to play just static (white noise). He slept for three hours straight in that swing! I was ecstatic.

Dr. Karp mentions in his book that babies are comforted when their surroundings are similar to what they’ve experienced when they were in their mother’s womb. In order to recreate that experience for your newborn you need to apply what Dr. Karp refers to as the “Five S’s”. The five S’s help your newborn baby feel at home so to speak. Without going into too much detail but enough so that you can understand, I will try to explain the five Ss and the reason for them. If you want more information then I suggest purchasing the book. Dr. Karp goes into great detail explaining why the five Ss work and other health issues regarding your baby i.e. Shaken Baby Syndrome, SIDS. In addition, he discusses that many cases of colic can be cured by following the five S’s.

So let me first give you a breakdown of the five S’s and then I will explain how we applied them to get our son to sleep through the night when he was just seven weeks old.

The Five S’s

  • Swaddling
  • Side
  • Shh!
  • Swing
  • Suck

The first step in the process of calming a baby involves wrapping them up nice and tight. Swaddling your baby correctly, helps mimic the tight surroundings of the uterus. The problem with this step is that many parents cant seem to get it right. Dr Karp provides an illustration on how to swaddle a baby properly; however, most parents don’t have large enough blankets that would allow the process to be done correctly. In addition, many parents don’t swaddle their baby tight enough. I know I had a hard time with it and I had to keep doing it repeatedly. For swaddling to work right, it has to be tight. The tighter the better.

Furthermore, I have heard from friends that they have tried swaddling but their baby hated it because he/she liked having his/her arms free. Dr Karp mentions that newborn babies really don’t even know that they have arms. Since their arms are a distraction, it’s important to swaddle your baby. The bottom line is that every baby likes to be swaddled. While it’s true that a baby might start crying when she’s first being swaddled, they usually calm down after a minute or two.

Placing a baby on her stomach or side can help keep them content. According to Dr. Karp, babies have what’s called the Moro reflex. When a baby is lying on her back she may feel like she’s falling. This feeling can trigger the Moro reflex and the baby will start thrashing and crying. You can prevent this reflex from being triggered by placing your baby on her side. However, to prevent Sudden Infant Death Syndrome (SIDS) Dr. Karp advises parents not to place a baby to sleep on his side or stomach.

The heading for this technique should really be “Noise”. According to Dr. Karp, the noise level inside a mother’s womb due to blood rushing through the arteries was equivalent to that of a vacuum cleaner or hair dryer. Therefore, anything that produces this level of noise will make them feel at home and help keep them calm.

One great way to quiet a crying baby is to go “shhh” loudly really close to their ears. The shushing has to be louder than the baby’s crying in order to work. When we would travel, we would place a small handheld weather radio tuned to static on our baby’s car seat. This really helped in keeping him calm. At home, we would place the radio on the tray of the baby’s swing.

Here is a video of a parent calming their crying baby with the sound of a hair dryer.

According to Dr. Karp, babies in their mother’s womb have become so accustomed to movement that it becomes difficult for them to adjust to the stillness of a bassinet after they are born. Babies love movement. They love being rocked and jiggled. Dr. Karp provides several different jingling techniques in his book that could help to calm a crying baby instantly. A baby swing is a great tool and when used with the other techniques it will help keep your baby happy for hours.


Babies are born with a desire to suck. If you take your pinky and stick it in their mouth, they will suck on it for hours. In fact, that’s what it took at times to calm our son down. There’s a reason why they call it a pacifier. Sucking on a pacifier helps to soothe a crying baby. They like it and they need it. Of course there are pros and cons to having your baby suck on a pacifier. If you are absolutely against your child having a pacifier then it may be a bit more difficult to calm your baby or to get her to sleep. If your concern is about getting your child off the pacifier then check back here in a couple of weeks I am planning to write a post on that very topic. [Update: The post is up and you can read about how to get your child off the pacifier here]

What We Did
To get our seven week old to sleep through the night we applied three of the five ‘S’ techniques.

Our son refused to suck on anything except for a pinky. We literally tried every single pacifier on the market until we found one that stayed in his mouth. I had to find one that resembled a pinky the most. Once we find the right one we knew we were on the right path to keeping him calm.

Although Dr. Karp recommends that parents not put their babies to sleep on their sides, we did it anyway. The main reason for not putting babies on their side is that they can roll over onto their stomachs and be at risk for SIDS. To prevent that from happening we put rolled towels on each side of our son. The towels were wedged between our son and the wall of the bassinet thus preventing him from rolling over. If you can get your newborn to sleep with out putting her on her side or stomach then that would probably be a better option.

The main reason for the “side” technique is to calm a crying baby. Dr. Karp mentions that once the baby is calm you should be able to put him to sleep on his back (of course he will need to be swaddled well and sucking on a pacifier).


Swaddling was the most challenging component for us. The problem with swaddling is that even if you do it right it doesn’t take much for it to come apart. Every time we moved our son, we had to re-swaddle him. We also couldn’t find a blanket that was large and thin enough to swaddle the way Dr. Karp illustrates in his book. We tried all sorts of things. I went to baby stores to try to find something that would work right. We bought the “SwaddleMe” blanket but it was terrible. The fabric was way to stretchy and thin, the Velcro didn’t stick well enough, and the swaddling wasn’t nearly as tight as it was supposed to be. After doing some research online, I found a product that had excellent reviews on Amazon. It’s called “Miracle Blanket”and it’s probably the best modern day invention for parents with healthy newborns. I can’t praise this product enough. The material was of great quality, the swaddling was tight, and the baby could stay wrapped up the whole day just with one swaddling episode. Instead of me trying to explain why and how this blanket works so well, just check out the product website. There’s a video right on the home page showing a baby being swaddled.

My only issue with the product was its price. I couldn’t find it anywhere local and it cost close to $40 once you add shipping and tax when ordering it from their online store. However, you could find it for less than half that on eBay. So in the end, we bought a used one that was in great condition from an eBay auction for $20 including shipping.

So that’s what we did. We got our son a pacifier that stayed in his mouth. We swaddled him up nice and tight with the Miracle Blanket. And we placed him to sleep on his side.

This lasted until he was about four or five months old. Once your baby grows to a certain size swaddling becomes difficult and less effective since the baby is really no longer a newborn and is now more accustomed to life in the real world.

This post was submitted to the November 26 issue of the Carnival of Family Life hosted over at

Popularity: 100% [?]

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37 Responses

  1. That’s really an interesting article. Wish I had known some of those facts when mine were little, although we did make good use of the swing. They both LOVED it.

    Thanks for contributing this lovely post to the Carnival of Family Life which I am posting this week! It is a valuable addition to the Carnival!

  2. Eric says:

    Thanks for the feedback and thanks for hosting the carnival.

  3. I found it very interesting reading your website. My daughters baby (7 weeks) cries through the day unless he is in the baby carrier. She now has a sore neck!
    We have tried dummies (british equivalent of pacifiers. could you please tell me what brand(make) you eventually used?
    Thank you for your help
    M Tierney

  4. Eric says:

    Hi Marjory,

    We used a Soothie. Many hospitals in the US use them. Here are some links related to the pacifier:

    I tried to find the product on Amazon UK but they dont seem to have it.

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  5. Candace says:

    do u have the illustration for how to swaddle my baby. im having a difficult time with her. she is 3 weeks old and is awake about every 2 hours. i dont even care if she wakes up at nite, at least every 4 hours

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  7. laura says:

    Babies at 7 weeks shouldn´t be sleeping right through night..they need to be fed every 3 hours, never longer than 4.

    I agree with the´s a great idea!

  8. Tracey (UK) says:

    Laura – Try telling that to my 7 week old breastfed baby (who has been swaddled from day one incidentally), she’s slept 8 hours or longer 3 times in the last week. Interestingly she hasn’t reduced the overall number of times she feeds, she feeds the same amount and cluster-feeds in the evening leading up to bedtime.

    Marjory – You can buy the Soothies on eBay, but the same manufacturer now also do the Gum Drop which is slightly better design – I also bought mine on eBay.

    BTW I loved the article! Once our Daughter’s asleep she sleeps very well because of being swaddled, she just resists getting there! Have just bought a Miracle Blanket as our Daughter has just been prescribed a Pavlik Harness as she has DDH, and the extra bulk of the harness means she’s almost outgrown the SwaddleMe blankets we bought before she was born.

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  12. lucie says:

    Wondering which pacifier worked as my daughter will only suck on a pinky or breast.. we have tried many pacifiers and she just spits them out. She is 5 weeks old… is she just too little for one?

  13. Joculete says:

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  14. Mimi says:

    I think light swaddling is just OK, But I think babies move more in the womb than we think and I think these very early weeks and months are so important in moving and strengthening the arms and legs. Maybe the first 8-10 days and then a gown where there are mitts to keep babies from pulling their own hair etc. You will be amazed how much they wiggle and move and that is all very important developmentally!!!

  15. Lauren says:

    I tried the swaddling, ssshhhh, and swing last night and it was the first peaceful night in my house since my daughter was born. I hope that it lasts. The kicker is that I used to work at a day care and I always swaddled the babies to get them to sleep, but i didnt think to do it to my own baby. I guess thats what happens when you are exhausted

  16. Jemima says:

    Hi, I completely empathise with the parents of a colicky child. It’s hard work!

    Our little one suffered from Colic for 3 months, and the only thing which stopped him crying was the sound of white noise. White noise is what babies hear in the womb, and it seems to calm them right down.

    I’ve posted the link to the one we used. It’s called:
    Shhh… The Secret to Sleep! Natural White Noise from the Purest Waters In the World.

    It was absolutely brilliant, especially the calming wave sounds! Make sure you play the recordings fairly loud. Good luck!

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  17. Tami says:

    You say you started swaddling your baby when he was 7-weeks-old?

    My 8-week-old has a huge startle reflex, wakes himself up every half-hour during the day and every hour at night.

    I found a swaddler that works a few days ago and he finally slept for 3 hours, but during those hours I checked some research and found that infants who start swaddling later can become hard to wake up thus putting them at greater risk for SIDS.

    How is you son doing? Do you know anyone (or is anyone reading this) that has introduced swaddling at a late date?

    Here is a link to an article about the study:

  18. Eric says:

    Hi Tami,
    My son is now 6 years old and he is doing fine. Wow how the years go by. We applied the swaddling to our twin girls also (who are now almost 4 years old) when they were just newborns and it made a big difference. We kept them swaddled until about 5 months.

    Regarding the link you sent, I had a look at it and searched until I found the original article published in the Journal of Pediatrics. Very interesting. Even more interesting is an article I found from the Department of Pediatrics at Washington University. Dr. Bradley Thach writes a review of the Journal of Pediatrics article and his concluding words are in line with what you were wondering.

    He writes the following:

    “In summary, the article by Richardson et al adds significant
    new information on arousal thresholds to tactile stimuli in
    swaddled infants. It should be noted, however, that currently
    there is insufficient evidence to indicate that infants swaddled
    while supine are at increased risk for SIDS. All in all, it would
    appear that the advantages of swaddling supine-sleeping
    infants outweigh the risks, if any

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  25. Hello everyone, I am a new mother and I am trying to get my three month son to sleep longer during night. At the moment I’m fortunate to get three hours rest a night. Thanks

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