Baby Merlin's Magic Merlin Sleepsuit - Microfleece Baby Transition Swaddle - Sleep Suit - Infants 3-6 Months and 6-9 Months

4.6 out of 5 stars 8,737 ratings
Price: $49.95
Brief content visible, double tap to read full content.
Full content visible, double tap to read brief content.
Size: Select Size
Color: Blue

Product details

  • Care instructions
    Likely: wash in cold water, tumble dry on low heat, do not iron or bleach

About this item

  • Comfortable Transition: Baby Merlin's magic sleepsuit helps babies transition from swaddling; ideal for infants with strong startle reflex; promotes better sleep and transition to regular sleepwear
  • Easy Diaper Changes: Featuring a double zipper, this sleep suit offers quick access for diaper changes without waking your baby; convenient design and easier for parents during late-night changes
  • Safe Back Sleeping: Magic suit for babies scooped neckline keeps fabric away from the baby's face; designed to ensure safe back sleeping, ideal for maintaining safe sleep practices in cribs
  • Proper Fit for Comfort: Select the right size for optimal comfort; designed for babies aged 6 to 9 months, this sleep suit provides a snug, cozy fit that supports restful sleep
  • Breathable Material: Magic merlin sleep suits are crafted from soft jersey cotton on the inside and breathable microfleece on the outside; includes a polyfill layer for added warmth and comfort
To buy, select Size

Product Description

The Magic Sleepsuit is a patented swaddle transition product that helps transition babies from the swaddle by providing them with a cozy, secure feeling. The Magic Sleepsuit was created by a mother of four who is a pediatric physical therapist to improve the quality and duration of her babies' sleep. The Magic Sleepsuit is designed for back sleeping in the bare crib only in a room at the recommended temperature for babies. The Magic Sleepsuit should not be used for co-sleeping, or with any sleep positioners.

The Magic Sleepsuit has a soft, breathable jersey cotton inner layer, a soft microfleece or cotton outer layer and a layer of polyfil in between for just enough comfort. The Magic Sleepsuit is designed to be introduced at approximately three months of age when babies are transitioning from the swaddle or smaller sleep space. Proper fit and timing of introduction are critical to the safety and effectiveness of the Magic Sleepsuit. Babies should be transitioned out of the Magic Sleepsuit when they roll over or try to roll over in it and are ready for more freedom of movement in their sleep.

The Magic Sleepsuit provides your baby with a cozy and calming sleep environment that will become a consistent part of their sleep routine. The Magic Sleepsuit is designed to aid in baby's sleep patterns, and give parents peace of mind that their baby is getting adequate rest necessary for appropriate growth and development.

MAGIC SLEEPSUIT DESIGN FEATURES

Magic Sleepsuit Blue Small Cotton

Double Zippers

Double zippers (with covers) for easy in/out of the suit and convenient diaper changes.

Open hands

Open Hands and Feet

Open feet and hands to help keep baby at a comfortable temperature.

Pink Cotton Magic Sleepsuit

Scooped Neckline

Scooped neckline to help keep fabric away from baby’s face.

SIZING CHART

The sizing chart is based on industry standards and these size ranges are guidelines as all babies have different body types which can affect fit. Proper We recommend staying within our sizing guidelines for best results.

Sizing Chart

Proper Fit and Sizing

Enjoy the Magic of a Sleeping Baby

Helping babies (and parents) sleep better.

Magic Sleepsuit, 100% Cotton, Blue
Dream Sack, 100% Cotton, Cream
Dream Sack Walker, 100% Cotton, Pink
Buying Options
Buying Options
Buying Options
Customer Reviews
4.6 out of 5 stars 20,488
4.7 out of 5 stars 2,107
4.7 out of 5 stars 2,107
Sizes Small / Large Small Large
Age Range 3-6 mo / 6-9 mo 6-12 mo 12-18 mo

From the brand

Previous page
  2. Baby Merlin logo image

  3. How did we get our start?

    A pediatric physical therapist and mom of 4, Maureen created the first sleep suit to help her own babies sleep better. The results were truly magical! She knew she had to share it with other new parents!

    What makes our products unique?

    The original swaddle transition product, our patented design muffles the reflexive twitches that disrupt baby's sleep, so they feel cozy and secure while sleeping safely on their back in a crib.

    Why do we love what we do?

    Everyone deserves the magic of good sleep! Enjoy it even longer with our new Dream Sack and Dream Sack Walker!

Next page

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 9.5 x 9 x 3.5 inches; 10.48 ounces
  • Item model number ‏ : ‎ MSS-BLP
  • Department ‏ : ‎ baby-girls
  • Date First Available ‏ : ‎ September 4, 2012
  • Manufacturer ‏ : ‎ Baby Merlin's
  • ASIN ‏ : ‎ B00WRM0FV8
  • Customer Reviews:
    4.6 out of 5 stars 8,737 ratings

Customer reviews

4.6 out of 5 stars
8,737 global ratings

Review this product

Share your thoughts with other customers
Write a customer review

Customers say

Customers find the sleep suit works well, helping babies fall asleep quickly and sleep through the night. The product receives positive feedback for its quality, comfort, and effectiveness during the swaddle transition, with one customer noting it works particularly well for 7-week-old babies. While some customers say it's not overly warm, others mention it can be too warm. The size receives mixed reviews, with customers noting the legs and arms are very tight.

AI-generated from the text of customer reviews

Select to learn more

1,161 customers mention "Sleep quality"1,048 positive113 negative

Customers report that their babies sleep well in this pajama suit, falling asleep quickly and sleeping through the night, with one customer noting their baby takes longer naps.

"...At 8.5 months sleeps totally through the night (9pm - 7:15am) on maybe 50% of nights!..." Read more

"...Right there is was worth the money. his 3rd nap of the day he slept for 60 minutes! That night was the first night we ever let him sleep unsaddled...." Read more

"...This definitely helps assist with sleep training too because he can fall asleep comfortably without us having to hold him every time...." Read more

"...Super stress relieving to know she is in a safe sleep position AND super relaxed with literally ZERO stress transitioning from the swaddle...." Read more

674 customers mention "Functionality"536 positive138 negative

Customers find that the sleep suit works well, particularly noting its effectiveness with newborns, and one customer mentions it performs well during travel.

"...Until we met the Magic Sleep Suit. It works like a charm. Our son loved it from the start...." Read more

"...I would almost say that the suit works too well...." Read more

"...not be economical and has some manufacturing faults, it still works as promised and my baby is able to sleep just as much as he did now that he can..." Read more

"Great size, great color, functions as expected. Very soft. A little hard to dry...." Read more

429 customers mention "Value for money"314 positive115 negative

Customers find the sleep suit to be worth its price, describing it as "worth its weight in gold."

"Seriously this was so worth the money! I read a lot of the positive reviews and hoped I would have a similar experience...." Read more

"...It was not only affordable, but also delivered the very next day...." Read more

"...Once on, it's almost worth the price just for the laugh. It looks completely ridiculous...." Read more

"...While it may not be economical and has some manufacturing faults, it still works as promised and my baby is able to sleep just as much as he did..." Read more

378 customers mention "Comfort"315 positive63 negative

Customers find the sleep suit comfortable, describing it as soft and fluffy, with one customer noting it fits well even at 16lbs.

"...It works like a charm. Our son loved it from the start. He feels cozy but isn't wrapped up so he can re-position himself to resettle or scratch..." Read more

"...The fleece is very soft and great quality. I haven't washed it yet so not sure if that will change?..." Read more

"...No lie. She sleeps amazing every night in this. Super warm and soft. The inside liner is so so soft I wish I had an adult sized one lol...." Read more

"...old, is 19 lbs. and 28 inches long. he still fits fine in the suit (though the sleeves are a tad short), but we decided to move him out of the suit..." Read more

211 customers mention "Swaddling"209 positive2 negative

Customers find the sleep suit works well as a transition from swaddling, helping babies move from swaddled to unswaddled sleeping at night.

"...Super stress relieving to know she is in a safe sleep position AND super relaxed with literally ZERO stress transitioning from the swaddle...." Read more

"...Perfect for swaddle transition - even at only 3 months old...." Read more

"...The suit aids in my daughter feeling comfortable to sleep but is not so stiff that she can’t move around in it when she finally wakes up...." Read more

"...He also loves swaddling. We had tried to unswaddle him, but he would wake himself up almost immediately after being put down...." Read more

160 customers mention "Suit quality"152 positive8 negative

Customers love the sleep suit's quality, noting that it looks great and their babies enjoy wearing it.

"...The sleep suit is very nicely designed. With 2 zippers it's easy in and easy out. Much easier than many swaddles." Read more

"...The seams are all still intact and the suits still look great...." Read more

"...crib, and I find that a short-sleeve onesie and socks are the perfect things to wear...." Read more

"This suit really is magic. It helped us transition our baby from a moving swing to her crib...." Read more

449 customers mention "Warmth"285 positive164 negative

Customers have mixed opinions about the sleep suit's warmth, with some finding it perfect for cold weather and not overly warm, while others report that their babies overheat in it and their hands feel cold in the morning.

"...We put him in naked with just a diaper and overheating has not been a problem. It's AMAZING...." Read more

"...I will say, I am thankful it’s winter because it’s such a warm outfit, as you can imagine. 100% recommending this to my friends with infants." Read more

"...The other reason I don't like it is because it is warm...." Read more

"...No lie. She sleeps amazing every night in this. Super warm and soft. The inside liner is so so soft I wish I had an adult sized one lol...." Read more

164 customers mention "Size"31 positive133 negative

Customers have mixed opinions about the pajamas' size, with some finding them big and snug, while others report that the legs and arms are very tight.

"...and 28 inches long. he still fits fine in the suit (though the sleeves are a tad short)..." Read more

"...She was below the recommended age for the suit, and it was way too big for her, but I made some adjustments (like rolling up the sleeves) so that..." Read more

"...for 3 months, until they reach the upper end of the 6 months, its extremely long, and both his hands and feet are barely visible and it has to be..." Read more

"...Another issue is the short lenghts of the limbs...." Read more

Love!
5 out of 5 stars
Love!
My son is just about to be three months old, weighs 15 lbs, and is 23.5 inches long and this sleep suit is perfect for him! (Size small) He had generally be a decent sleeper stone we had our him in the love to dream swaddle (he HATES have his arms swaddled down and would break out of everything i tried, including the halo). The love to dream allowed him to have his arms up, but he will was waking up more than I had hoped since his startle reflex is still quite strong. I decided to try the Merlin sleep suit instead and wow - I love it and so does he! He still wakes up once to feed most nights, but some nights he sleeps right through the night. I know this may change soon with teething and the four month sleep regression, but this has given me some much needed rest. For reference, I keep his room at 70 degrees and dress him in a diaper and short sleeve cotton onesie underneath, no socks or hand covers (it is recommended to keep hands and feet uncovered so they can regulate their body temperature). He runs warm, and I've checked several times and he is never too warm dressed like that. He can still move a bit, and easily can move his head back and forth (I saw some reviews saying that was an issue but it wasn't for him.)If you are looking to get more rest and your little one fits the weight requirements for this, I say go for it!The only downsides: 1) Kinda tough to get him in and out at first but now he is getting used to it and won't fight me... He loves it! 2) Diaper changes in the middle of the night. I figured out that I can unzip him, pill his legs up and put a fresh diaper under his butt, take off the old diaper, give a quick wipe/add diaper balm, then quickly fasten the new diaper all before he has the chance to pee all over everything. I also have a burp cloth handy to cover him with just in case.This sleep suit is well worth it for me and my son!
Hide
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

  • rwidome
    5.0 out of 5 stars for our son, it was magic
    Reviewed in the United States on April 11, 2013
    Verified Purchase
    Here's are sleep story thus far.

    Our son was good at many things but sleep was not one of them. In his first few months he was often up all night. No, I do not mean multiple wakings, I mean basically one or two wake-ups and then he couldn't get him back to sleep as hard as we tried. Some night he slept only 1.5 hours total. We tried all sorts of things, some things worked a little. Swaddling sort of seemed to work a little maybe but it was hard to tell because even as a newborn he would break out of his velcro swaddles. Then our postpartum doula introduced us to the Miracle Blanket swaddle. That was harder to break out of and our son liked it better. Around 3 or 4 months he started sleeping in 1-2 hours stretches because of the swaddle which was a huge improvement. But still, being up every 1-2 hours isn't great in the whole scheme of things, right? Just before our son turned 6 months we started feeding him solid food and he started sleeping way better and things were looking up, food + swaddle was a winning combination but we had a problem: SWADDLE ADDICTION. He could not sleep AT ALL without the swaddle.

    Why was this a problem? Several reasons. First, I was very scared he's roll on his belly while swaddled and get stuck. Because of my fear of this we got a video monitor, but it still sort of gave me anxiety every night (even though he never actually did this). Also, he sort of had a love/hate relationship with the swaddle. He needed it to fall asleep but sometimes I felt like it was interfering with his ability to resettle himself when he woke. Also, since our son has eczema and you can't itch yourself when you are swaddled it seemed uncomfortable at times. Imagine how maddening that would be, to have an itch and be wrapped up! And no, there was no way to unswaddle him after he fell asleep without waking him. We tried one arm out many times as a transition, but no luck, we were in a bind.

    Until we met the Magic Sleep Suit. It works like a charm. Our son loved it from the start. He feels cozy but isn't wrapped up so he can re-position himself to resettle or scratch an itch. At 8.5 months sleeps totally through the night (9pm - 7:15am) on maybe 50% of nights! We put him in naked with just a diaper and overheating has not been a problem. It's AMAZING. I can relax at night knowing he's safe and he won't be stuck if he rolls. I don't feel horrible that he might have an itch he can't get at. He's so happy to get in it every night, he does this cute little cozy wiggle as we zip him up. My husband and I look at each other all the time and say, "wow, I can't believe we made it past the swaddle!" I had no idea how we were going to get him past the swaddle.

    The sleep suit is very nicely designed. With 2 zippers it's easy in and easy out. Much easier than many swaddles.
    10 people found this helpful
    Helpful
     Report
  • Heather D
    5.0 out of 5 stars Truly Magic!
    Reviewed in the United States on February 10, 2016
    Size: Small (12-18lbs)Color: YellowVerified Purchase
    Seriously this was so worth the money! I read a lot of the positive reviews and hoped I would have a similar experience. My 4 month old hasn't been napping well because I no longer swaddle him in the day. He named 30 minutes almost to the minute and would startle and wake. He would wake tired and grumpy and it was horrible as he wouldn't want to be left in the crib to re-fall asleep. My friend told me about this suit as a transition from swaddling. I was so willing to try even though the price didn't make my husband happy. I told him $40 for my sanity was a small price to pay. The package arrived after my sons morning nap (of 30 minutes). I put him in the suit for his next nap. Of course he was adorable in this big suit, like man other reviews said. I couldn't help but smile. He napped for 3 hours!!!!! 3 hours!! Right there is was worth the money. his 3rd nap of the day he slept for 60 minutes! That night was the first night we ever let him sleep unsaddled. The night was horrible. My son could still reach his hands well to try and comfort himself. It was a disaster. I'm blaming a good part of that to his pacifier issues as well - although with a swaddle they weren't as bad. The second night was a complete turn around!! He slept the night waking once to nurse and then waking at his normal time in the morning!!! It was the second night he was out of our room. I'm sold and so happy for this suit. It's not a complete fix all, but I'd say 90% of a fixer!

    My son is 4 months old and 1 week. He is less than 2% in height and 25% in weight. So small. The suit fits him sell. The collar goes down nice and low as to not disturb the neck from moving and getting into the babies mouth. the arms and legs are open. I was thinking I would put socks on my son, but his feet actually don't even stick out! The arms are perfect going down to his wrists, but shortening when he brings his hands to his mouth. The fleece is very soft and great quality. I haven't washed it yet so not sure if that will change?

    Already after 2 days my son seems to realize as I put him in this suit he's getting ready to sleep. Kind of like starting to swaddle a baby, they know and start to calm down and relax a bit.

    The suit is not ridged. I worried the suit would be stiff, but it's not. It might be the warmth and weigh on the child that helps? Whatever it is it works. Not restrictive if you're worried about that. I'm able to put my son in this and nurse him and stick him in bed.
    13 people found this helpful
    Helpful
     Report
  • Sonja Bell
    5.0 out of 5 stars Outstanding product!
    Reviewed in the United States on January 30, 2025
    Size: Large (18-21lbs)Color: YellowVerified Purchase
    My 3 1/2 month old son uses a swaddle every night. Lately he has been fighting it and getting his arms free and is seconds away from rolling. I read online that swaddling one arm for a week and then losing the swaddle completely is a good way to get them used to having their little arms free. However, his startle reflex is still super prevalent and he frequently woke up the first night without it. In a 3 am groggy haze, I found this WONDERFUL michelin man looking outfit. It was not only affordable, but also delivered the very next day. We have had it for 3 nights now and this thing has my son sleeping within 10 minutes!!! He normally gets pretty frustrated and has a relatively difficult time falling asleep. This definitely helps assist with sleep training too because he can fall asleep comfortably without us having to hold him every time. I will say, I am thankful it’s winter because it’s such a warm outfit, as you can imagine. 100% recommending this to my friends with infants.
    Helpful
     Report

Top reviews from other countries

Translate all reviews to English
  • Erika
    5.0 out of 5 stars Works great
    Reviewed in Sweden on September 19, 2023
    Size: Small (12-18lbs)Color: BlueVerified Purchase
    Worked a charm as a swaddle transition for our little one. Only had to use for a week and could then stop swaddling. Very happy!
    Report
  • Rob T
    5.0 out of 5 stars Definitely worth the money!
    Reviewed in the United Kingdom on February 19, 2018
    Size: Small (12-18lbs)Color: BlueVerified Purchase
    Good quality, our baby is 3 months and it’s snug on him already as he’s quite a big baby, so I think we’ll be moving up in the sizes!

    Been a massive help throughout leap 4 as our baby has outgrown his “sleepyhead” - because it’s weighted, it offers the same sensation of being cuddled, so he’s now able to take himself off to sleep in the Next 2 Me and is now only waking once during the night!
    Report
  • Daniele Pelagatti
    5.0 out of 5 stars Magico
    Reviewed in Italy on February 1, 2019
    Size: Small (12-18lbs)Color: YellowVerified Purchase
    Lo scopo del pigiamino è quello di contenere il bambino e prevenire risvegli improvvisi dovuti al riflesso di Moro. Consigliato l'acquisto a tutti i genitori i cui bambini dormono solo a pancia sotto e/o nell'ovetto.

    Il nostro non era mai riuscito a dormire tranquillamente sulla schiena perché si svegliava da solo dopo 10 minuti con movimenti inconsulti.

    Dopo aver provato un paio di volte questo pigiamino ora lo adora e cade a dormire quasi immediatamente appena lo indossa.

    Non sono sicuro che sia adatto all'estate o ai climi caldi: da solo fa da copertina abbastanza calda.

    A coloro che si lamentano che è troppo rigido rispondo che evidentemente non hanno capito a cosa serve.
    Report
  • Katie Lynn Koester
    5.0 out of 5 stars You get to sleep more, too!
    Reviewed in Germany on December 27, 2018
    Size: Large (18-21lbs)Color: BlueVerified Purchase
    Want your unswaddleable baby to sleep? This will help!
    Report
  • Rachel Stewart
    5.0 out of 5 stars Complete Game Changer
    Reviewed in Canada on February 12, 2025
    Size: Small (12-18lbs)Color: YellowVerified Purchase
    We were recommended this sleep suit by a friend. Our son never liked being swaddled but would continually wake himself up throughout the night. Before we got maybe 2-3 hours out of him at a time. The first night he wore it, he slept 5 hours!! It’s been about 2 weeks with this sleep suit and last night he slept his first 8 hour stretch! It’s truly magic.
    Customer image
    Rachel Stewart
    5.0 out of 5 stars
    Complete Game Changer

    Reviewed in Canada on February 12, 2025
    We were recommended this sleep suit by a friend. Our son never liked being swaddled but would continually wake himself up throughout the night. Before we got maybe 2-3 hours out of him at a time. The first night he wore it, he slept 5 hours!! It’s been about 2 weeks with this sleep suit and last night he slept his first 8 hour stretch! It’s truly magic.
    Images in this review
    Customer image
    Report