4 Month Sleep Regression: Tips from a Third Time Mom

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Don’t let this smiley babe fool you! The four month sleep regression hit us early and hard this third time around. I guess that’s the price we pay for having escaped it altogether last time with our middle little!

I’m not going to complain because we’ve been blessed with “unicorn” babies. All three of our boys slept through the night pretty early on at around 11/12 weeks! I always joke around with our husband that the sleeps gods must know just how much we both love (and need) our sleep to be functional, happy humans. This third time around has been easy for me especially.

Aside from my own self-induced lack of sleep, B is super flexible and laid-back. He only cries if he’s hungry and pretty much smiles most of the day. I think the four month sleep regression hit me harder because the last few weeks of good sleep got me into a bad habit of staying up late to work after B’s bedtime.

While he was sleeping 8pm-7pm for a few weeks, the last two weeks have been a complete guessing game. Some nights he’ll sleep soundly and other nights he’ll be up three to four times. Sometimes he’ll wake up and not be able to settle until an hour or two later. I’m pretty much surviving these days on lots of coffee!

One of my favorite baby products is the Ergobaby™ Swaddler. None of our babies were fans of being swaddled. But, both my oldest and youngest sons needed it through the four month sleep regression. The Ergobaby™ Swaddler’s innovative design makes it easy to swaddle correctly for a great fit every time. This is the magic answer for moms like me who never learned how to swaddle babies correctly! Between three kids, I’ve tried every type of swaddle trick to no avail. I can never get it tight it enough to last all night. Some things can’t be taught or learned, even after three babes! I love that the Ergobaby™ Swaddler is ergonomic and “escape proof,” but leaves B comfortable to sleep through the night. The swaddle secures with premium velcro and is easily adjustable. I love the light-weight fabric that is an areated cotton-poly blend to keep him cool during these hot summer to fall days.

4 Month Sleep Regression Tips

So I’m not going to sit here and tell you that there’s a magic solution to fight the 4 month sleep regression. It’s a developmental stage that most babies go through. Babies are still learning how to develop good sleep habits. And four months is right around when babies go through a major growth spurt.

Obviously as with most things parenting you just need to wait it out. There’s no predictability when it comes to baby sleep cycles and/or the number of times the baby wakes (or doesn’t wake) throughout the night. But, as a third time mom in the thick of it right now, here are a few of my tips for surviving this treacherous sleep deprivation stage:

Go to bed early:

This is my number one fail. Even though the sleep regression is real, the one thing that has stayed consistent is his bedtime. B hasn’t changed falling asleep for the night at 8pm. (There are some nights that it ends up being 9pm before he falls into a deep sleep.) But, my mistake has been not putting myself to bed right after he goes down for the night.

While I’m a firm believer in enjoying night time solo or with my husband, it’s a sacrifice that’s worth making for the sake of rest during this phase. Seriously, go to bed when the baby does, fuel up on the early night sleep! It’s usually their longest stretch even through the four month sleep regression. It is the number one thing that has helped this sleep-deprived mom from pure exhaustion during this sleep regression at four months of age.

Don’t go to the baby right away:

I remember when I was a first time mom getting up any time I heard the baby make a noise. I didn’t even give him a chance to settle down before I added to his wakefulness in the middle of the night. More times than not, B can get himself settled back to sleep. And I’m not talking about crying it out or any other formal sleep training method. When you hear the baby, just give it a minute or two. The baby just might surprise you and fall back asleep.

Tag team with your partner:

We try our best to switch off night duty now, just like we did during the newborn weeks. I simply just cannot get up sometimes and vice versa. The weight of sleep depravity on our bodies is real. Listen to your body. And take a night off if you can. Even if you get in one good, full sleep cycle in, I guarantee you’ll feel more rested and much less sleep deprived.

Try different products:

I think I’ve tried every single swaddle blanket out there with my oldest. This time I went straight for the easiest to use swaddler because I simply cannot figure out how to swaddle a regular blanket. The other velcro swaddles I used with A just didn’t keep him wrapped up. But, the Ergobaby™ Swaddler has arm pockets that help keep baby B swaddled while keeping him snug, but comfortable.

We also loved the Love to Dream Arms Up swaddle, especially in the first few months. While babies tend to grow out of the swaddle phase pretty quickly, it is essential for us to help him lengthen the REM sleep at night. Waking himself up from moving his arms around is not a distraction I need in the middle of the night.

Don’t overthink it:

This sounds so simple and basic. But, seriously, relax and don’t overthink it. There were many sleepless nights when I couldn’t fall asleep just because I would try to play the guessing game of “will he sleep or won’t he”. It seriously worsened how sleep deprived I was and made for the little sleep I got to be completely un-restful.

I know it’s hard not to think this way when you’re in the thick of sleep depravity. But, if you’re anything like me, the worry and anxiety only adds to the lack of sleep and creates added stress to the seemingly never-ending cycles of short sleep.

Stick to your routine:

Through this phase and all of the other regressions to come, the one thing that’s worked for us is to keep up the consistency of our bedtime routine. It’s not only good for our babies, but it’s good for us as parents, too. Bath time, stories with big brothers, prayers, nursing session, sound machine, and lights out! These are all of the steps in our routine that has “worked” for all three unicorn babes.

Drink lots of coffee:

You know my love for coffee runs deep. Whatever is your fuel of choice, drink it, drink lots of it and don’t feel guilty. We are in pure survival mode! Do you and be proud. No one else is waking up with your baby. So don’t mind their comments or advice. (Myself included!) You’re the one who knows best what works for you and your baby. One day at a time, the baby will inevitably grow out of this phase and someday soon you won’t be as sleep deprived as you are today.

Take everything I said with a grain of salt, but it’s what worked for me. So, I hope some of these tips can help you and your baby get some restful sleep in the coming days.

And last, but not least, remind yourself that this is hopefully just another phase. Do what I do and chant in your mind, “THIS TOO SHALL PASS.” Because as long as these nights seem, the years are so, so very short.

4 Month Sleep Regression: Tips From A Third Time Mom

All photos by Diana Liang.

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hello & welcome!

I’m JeeYoung – Consultant, Content Creator, Chaos Coordinator. I’m a work at home mom to 3 boys in Metro Detroit.

This is a snippet of all the things that make us smile through our chaotic days. I’m so happy you stopped by!


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  1. Kari wrote:

    Drink lots of coffee is right!!! I have a 27 month old who has only slept through the night three times so I can relate to some of these things like going to bed at the same time as them to help with the lack of sleep!

    Posted 9.26.17
  2. Susannah wrote:

    We just got through the four month regression with our little man and it’s TOUGH! I hope these tips help some new mamas out there! <3

    Posted 9.26.17
  3. Jane wrote:

    Oh my gosh, girl, you make some darn cute babies! He is cute enough to give me a lil baby fever. haha! These are great tips that I’ll be saving for future babies.

    Posted 9.26.17
  4. Belle wrote:

    Your baby is so precious! We also had to swaddle our babies when they were younger and it has helped a lot with their sleep!

    Belle | http://www.OneAwesomeMomma.com

    Posted 9.26.17
  5. Jehava wrote:

    Great tips that I definitely used and your baby is sooooooo cute!! Enjoy him!

    Posted 9.26.17
  6. Great tips! i just couldn’t resist how beautiful your baby is! i am getting baby fever already.

    Posted 9.26.17
  7. Angel wrote:

    My daughter went through sleep regression around 8 months too but she ended up havinf a growth spurt. Coffee with espresso for me! Thanks for sharing…the yeara are short indeed!

    Posted 9.26.17
  8. Jessica Bradshaw wrote:

    Not only are your tips super helpful, but these photos are stunning! My word. What a sweet little babe.

    Posted 9.26.17
  9. Going into survival mode and doing what needs to get done is SO key. Definitely agree that you should shut out the opinions of others, drink that coffee, and GET IT DONE. 🙂

    Posted 9.26.17
  10. Lesly wrote:

    Okay first, your baby is adorable and second I love all your advice! As a mama of two I can tell ya I could have used your words of wisdom way back when <3

    Posted 9.26.17
  11. Angie wrote:

    My little girl went through this while she was teething. There were many nights were I got no more than 2-3 hrs of sleep. But my mistake was also not going to sleep when she did! Definitely needed all the coffee!! Lol

    Posted 9.26.17
  12. ashley peavey wrote:

    He is so cute! Sleep regressions are the worst!!

    Posted 9.27.17
  13. Adree wrote:

    I love his smile. He is such a cutie. Sleep with kids is so hard and it seems like you can never get enough of it. Great tips, love the reminder to go to bed early as the mom not just the kids.

    Posted 9.27.17
  14. Swaddlers never went over well with my kids either. Gosh, you had it easy for the most part on that sleeping thing!

    Posted 9.27.17
  15. I love how breathable this swaddler looks! And I’ve had such great experiences with the ERGO brand. I’m excited to see them coming out with new products!

    Posted 9.27.17
  16. Kristine wrote:

    Beautiful photos! I don’t have babies, but these are great tips for the future. Thanks for sharing!

    Posted 9.27.17
  17. Tamara wrote:

    Having a swaddle made a huge difference during sleep regression for us.

    Posted 9.28.17
  18. Oh, I remember the sleep regression days well! Swaddling my daughter was a godsend!

    Posted 9.28.17

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