À 4 mois, quelque chose de fondamental se passe dans le cerveau de votre bébé — et cela change son sommeil pour toujours. Si votre enfant dormait “bien” avant 4 mois et que tout s'est effondré depuis, vous n'êtes pas en train de faire quelque chose de mal. C'est la régression des 4 mois, et elle touche la quasi-totalité des bébés.
Ce qui change dans le sommeil à 4 mois
Avant 4 mois, le sommeil du nourrisson est relativement simple : alternance de sommeil léger et profond, avec peu de transitions. À 4 mois, l'architecture du sommeil se restructure définitivement pour ressembler à celle d'un adulte, avec des cycles complets de 45 à 50 minutes comprenant plusieurs stades (sommeil lent léger, sommeil lent profond, sommeil paradoxal).
Entre chaque cycle, il y a un bref moment de semi-éveil. Un adulte le franchit naturellement sans se réveiller. Un bébé qui n'a pas encore appris à s'endormir seul s'y réveille pleinement — et crie.
Combien de temps dure la régression des 4 mois ?
Entre 2 et 6 semaines dans la plupart des cas. Contrairement aux autres régressions, celle-ci est permanente : l'architecture du sommeil ne revient pas à l'état nourrisson. Ce qui s'améliore, c'est la capacité de bébé à gérer les transitions entre cycles de façon autonome.
Combien de sommeil a besoin un bébé de 4 mois ?
| Sommeil total/24h | Nuit | Siestes |
|---|---|---|
| 14–16 heures | 9–11 heures (avec réveils) | 3–4 siestes de 30–90 min |
5 stratégies efficaces pour les nuits de 4 mois
1. Introduisez (ou renforcez) une routine du coucher
À 4 mois, le cerveau est assez mature pour commencer à associer une séquence répétable à l'endormissement. Bébé, biberon/sein, gigoteuse, chanson, lit — même ordre, chaque soir.
2. Couchez bébé éveillé mais somnolent
C'est le changement le plus important. Si bébé s'endort dans vos bras et se réveille seul dans son lit, il ne comprend pas comment il est arrivé là — et pleure. Posez-le dans son lit avec les yeux encore ouverts (mais fatigus) et laissez-le finir de s'endormir seul.
3. Transition de l'emmaillotage vers la gigoteuse
Si vous emmailloitez encore à 4 mois, c'est le moment de faire la transition — car bébé va bientôt commencer à se retourner. Une gigoteuse lestée reproduit la sensation d'enveloppement de l'emmaillotage tout en laissant les bras libres.
4. Utilisez la pression proprioceptive
La pression proprioceptive d'une gigoteuse lestée aide bébé à traverser les transitions de cycles sans se réveiller pleinement. C'est l'un des outils les plus efficaces pour cette période spécifique.
5. Ne changez pas tout à la fois
Face à l'épuisement, la tentation est grande de tout changer. Restez aussi cohérent que possible — les changements fréquents prolongent la période de difficulté.
Pour les 8–12 kg · 4–18 mois
BABYDEEPSLEEP® Weighted Sleep Sack Baby — €109
Conçu pour exactement cette phase : aide bébé à traverser les transitions de cycles de sommeil à 4 mois grâce à la pression proprioceptive — moins de réveils, plus de sommeil pour tout le monde.
Voir le produit →Questions fréquentes sur le sommeil à 4 mois
Mon bébé de 4 mois se réveille toutes les heures — est-ce normal ?
Oui, c'est typique de la régression des 4 mois. C'est épuisant, mais c'est un signe que son cerveau se développe normalement.
Quand mon bébé de 4 mois va-t-il dormir plus longtemps ?
La plupart des bébés font des progrès significatifs entre 5 et 7 mois, une fois qu'ils ont appris à s'endormir de façon plus autonome et que leur rythme circadien est mieux réglé.
Doit-on faire dormir un bébé de 4 mois dans le noir complet ?
Oui — la mélatonine n'est sécrétée qu'en l'absence de lumière. Les rideaux occultants font souvent une grande différence, surtout en été.
Let customers speak for us
Our son woke Up very often in the middle of the night and struggled to calm down. The weighted back helps him to sleep through the night and we ordered a second one.
I'm a big fan of sleepsacks, both with and without weight. The swaddle is clearly well thought out. It's very intuitive how the arms should be placed. The weight has a smart shape and filling. It even has small holes along the sides to ensure your baby doesn't get overheated. The material is nice quality and the zipper seems like it will live out the lifetime of the product. Love it.
Wir sind super zufrieden. Meine Tochter(9monate) konnte nie auf dem Rücken schlafen weil sie immer durch ihre eigenen Bewegungen wach wurde. Seit dem ersten Tag der Nutzung kann sie jetzt auf dem Rücken schlafen, schläft viel schneller ein und wacht nicht mehr so oft in der Nacht auf wie davor. Ich fände es super wenn der Ausschnitt am Nacken tiefer wäre dann könnte man den schlafsack auch "falschrum" anziehen und das Gewicht auf dem Rücken haben sodass das Baby auch auf dem Bauch schlafen kann aber sonst top!!!
Wir haben den Schlafsack mit und ohne Beine und jetzt zuletzt auch die Weste gekauft.
Den Schlafsack haben wir gekauft, weil unser Baby damals immer schon um fünf Uhr morgens wach wurde, und nicht mehr weiter schlafen wollte. Nachdem sie mit dem Schlafsack geschlafen hatte, hat sie bis sieben Uhr morgens geschlafen und das einmal nachts Stillen hat sie auch aufgegeben und durchgeschlafen!!!
Seit her verwenden wir die Schlafsäcke vor allem wegen des frühen Aufwachens! Wir haben Phasen wo wir ihn nicht brauchen und Phasen, wo sie wieder damit schläft!
Einfach Top diese Schlafsäcke!
Für den Sommer schön dünn vom Stoff!
Im Winter haben wir in den Babyzeiten einen Wintersack drüber gezogen!
Und jetzt schläft sie einfach mit Decke drüber.
Vielen Dank für diese tollen Produkte.
Wir nennen unseren Schlafsack Schildkröte, weil es aussieht, als hätte sie einen Krötenpanzer an.
Ausprobieren und lieben!!!
Made it possible to put the baby down in the baby nest! Before baby could just sleep on me.
We had extreme problems with our 3rd child's sleep. After 3 months, we were at our wit's end and tried just about everything. He never slept for more than 45 minutes at a time and not by himself. It improved with the weighted sleeping swaddle. Now he is 5 months old and sleeps well for several hours.
Our daughter is 17 months old and she has a regular wake-up schedule around 9 PM, 11 PM, 2 AM, 4 AM, and 5:30 AM, usually staying awake between 5:30 AM and 6:30 AM.
She frequently wakes up during the night, feeling upset, tossing and turning, and wanting to breastfeed. She gets upset if she doesn't get to breastfeed and prefers to sleep on us while we have to stand up and rock her back to sleep. She usually sleeps in my bed.
Nights have been challenging, and we were getting desperate. However, last night was our first experience with the weighted sleeping bag... 😱 😱
She woke up around 12 AM for the first time, climbed on me, and quickly fell back asleep. She woke up a few times after that but managed to soothe herself back to sleep. At 5 AM, I had to stand up and rock her, but she quickly fell back asleep. At 6:10 AM, there was a joyful wake-up call from our 1.5-year-old. She slept much more soundly and peacefully, and she managed to fall back asleep on her own, which she had never done before.
We noticed a significant improvement just on the first night. In fact, I don't feel utterly exhausted this morning and don't have that pressing need to take a nap during the day, which I usually do. I'm feeling enthusiastic about the upcoming nights and hoping to get a full night's sleep without interruptions, so I can regain some normalcy in my life. I can't imagine what we would have done if we hadn't found this weighted sleeping bag.
I just want to say... thank you!! ❤
About 4 months ago, we entered a nightmare period. Our little boy, who had been sleeping through the night and was generally happy, suddenly started waking up multiple times during the night, inconsolable. Initially, we attributed it to a cold, but even after he recovered, the night disturbances continued. About 2 months later, he was diagnosed with asthma, which seemed like a valid reason for his nighttime awakenings. However, despite responding well to asthma medication and having no issues during the daytime, the nights remained a pure ordeal. He would wake up incredibly anxious and screaming, and we often found ourselves staying up for hours trying to soothe him back to sleep. We tried everything and came across something called 'Night Terrors,' which seemed to describe his symptoms perfectly – an anxious nightmare from which he couldn't wake up, likely triggered by his illness.
I am a trained occupational therapist, and I understand the importance of sensory stimuli for many individuals. So, we began researching products related to weighted blankets/bags. That's when we discovered this sleeping bag.
We received it a week ago, and now, he puts it on when he has his nighttime bottle, creating a positive association. And I must say, it's been a tremendous success. He has slept for a full 11 hours every night for the past 7 nights. Our boy is now extremely happy and well-rested, and so are his parents
Our son used to wake up in the middle of the night and struggle to fall back asleep, sometimes staying awake for 2-3 hours. When we read a lot about weighted pajamas, we decided to give them a try. We noticed results almost immediately. He started falling asleep faster and sleeping more peacefully. Instead of having 2-4 wakeful nights a week, it reduced to just one. Now that he has moved in with his big sister, he sleeps through the entire night, and we still use the weighted pajamas because we're afraid to try without them.
We purchased the Baby Deepsleep for our son a couple of months ago. It worked very well in terms of his daytime naps, but it was challenging to determine if it helped at night since our son continued to wake up as frequently as before. Nevertheless, it's a nice product, and I can certainly recommend it to everyone I know to give it a try
When my daughter turned 4 months old, her sleep gradually started to deteriorate. By the time she was 7-8 months old, it had become so bad that going to bed seemed pointless. She would wake up crying 1-2 times every hour throughout the night, and sometimes even more frequently during the early hours of the night. It was absolute torture.
I was aware of weighted swaddle but had hesitated due to the price. However, after trying everything else without success, it was our last option. We've used it for the past 4 nights, and the results have been remarkable. For the first 2 nights, she slept for 7-8 hours straight, and for the last 2 nights, she slept for a whopping 10 hours (!!) before waking up for a bottle. It's been incredible, and it has truly been my salvation. I should have bought it several months ago. I can't recommend a weighted bag enough!
Our girl had colic for the first 2 months, and all her sleep was on us parents... 🤯 We couldn't get her to sleep on her own under any circumstances. The first few nights with the weighted swaddle were a bit challenging as it didn't wrap as tightly as she was used to. But then, something miraculous happened! We woke up one morning and were utterly amazed because she had slept for 11 hours straight. Initially, we thought it might be a one-time occurrence, but to our delight, she has been doing the same thing every night since! 🤩 It's been a month now, and we use the weighted swaddle every time she needs to sleep, whether it's in the sling, the stroller, or the crib. We're even considering getting an extra one because we can't do without it when it's being washed. 😅🙈 The weighted swaddle has truly been invaluable to us, and we wholeheartedly recommend it!
Highly recommended if you have a child who refuses to sleep. My daughter, who was then 5 months old, simply wouldn't sleep. But once she got the weighted sleeping swaddle, she started sleeping right away. I could even stop using the stroller, and she would continue sleeping.
She went from only sleeping for 20 minutes while being held to using the weighted sleeping swaddle, and on the first day, she slept for 40 minutes in her stroller. The naps only got longer from there. Now, she's a happy and well-rested child! 🤩😍
We purchased a weighted bag for our 13-month-old daughter, who hasn't had significant sleep issues. She used to wake up 3 times at night for breastfeeding. After using the weighted bag for 14 days, we've seen a noticeable improvement. She has at least halved the number of awakenings where she needs assistance to fall back asleep 🤪.
We also immediately noticed a slower respiratory rate, with deeper breaths.
We're very pleased with the customer service and the fast delivery to Norway.
Our baby becomes noticeably calmer as soon as we put on the sleeping bag.
I was recommended one for babies aged 8 months and older, with a minimum weight of 10 kg. However, it turned out to be too big for our child, so I am selling mine to buy a smaller one.