Miiyu
Comfortable Trimmed Pyjama Set
This product is a two-piece pyjama set from Miiyu by Simons, an exclusive line designed in Canada, comprising a long-sleeve button-front shirt and matching capris. It is made from 100% organic cotton jersey, with the shirt featuring full-length buttons, matching trim, and a chest patch pocket, while the capris have a covered elastic waistband with drawcord and a back patch pocket. It is designed for sleep and loungewear, is machine washable, and reviews indicate that while most wearers find it true to size, some report the sleeves and pant length run short.
- Material
- 100% organic cotton
- Style
- casual, loungewear
- Category
- Apparel & Accessories > Clothing > Sleepwear & Loungewear > Pajamas
Color
Size
Specifications
Soft organic cotton pajama set with button-down shirt and capris, featuring a covered elastic waistband with drawcord and patch pockets.
100% organic cotton jersey; button shirt with patch pocket; capris with elastic waist, drawcord, and back patch pocket
- Material
- 100% organic cotton
- Style
- casual, loungewear
- Occasion
- sleepwear, loungewear
- Gender
- female
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Sleepwear & Loungewear > Pajamas
Additional Attributes
- soft 100% organic cotton jersey
- matching trim on shirt
- full-length button closure
- patch pocket at chest
- covered elastic waistband with drawcord
- patch pocket at back
- designer: Miiyu by Simons
- exclusive designed in Canada
Product Insights
Miiyu's Comfortable Trimmed Pyjama Set offers a nursing-friendly design with a button-front top that provides one-handed access, a chest pocket for phone storage, and breathable organic cotton jersey that wicks moisture and vents heat to reduce night-sweat disruptions, while minimizing skin friction and chemical residues for sensitive-skin comfort, but buyers must contend with sleeves and pants that run short (e.g., ending 6 inches above the wrist at 5'5") and a cotton fabric that may shrink further in the wash, requiring cold washing and low heat drying, sizing up, or accepting a cropped fit, and note that returns are only possible if the set is unwashed. Softness improves with each wash, and pilling is minimized by gentle cold washing inside out, making it a charming new-mother gift that doubles as loungewear.
- Length
Buyers at 5'5 say sleeves end 6 above wrist and pants are cropped.
Why this is supported
In a verified purchase review, a buyer at 5'5" noted:
However, at 5'5", the sleeves were about 6" from my wrist and the pants were cropped
Customer review, January 21, 2026This account, consistent across multiple reviews, confirms both sleeves and pant legs run short relative to the size chart.
- Shrinkage
Cold wash/low heat dry prevent shrinkage that further shortens fit.
Why this is supported
The brand's care response recommends:
We recommend washing the set in cold water on a gentle cycle and tumble drying on low heat to maintain the fabric's softness and minimize shrinkage.
What is the recommended washing and drying method to maintain the fabric's softness and prevent shrinkage?Another answer corroborates that
Organic cotton jersey can shrink in the first wash if not pre-shrunk; washing in cold water and tumble drying on low heat can minimize shrinkage.
Does this pajama set run true to size, and is the organic cotton jersey pre-shrunk to minimize shrinkage after washing?Given the set is already cut short in sleeves and legs, avoiding shrinkage is key to preserving the original fit.
- Nursing access
Button-front top provides nursing access without overhead lifting.
Why this is supported
The button-front design is highlighted in nursing resources:
Easy nursing access Button-down fronts, wrap designs, or stretch necklines allow you to feed your baby quickly without fully changing clothes
ekouaer.comThis feature eliminates overhead arm movement, making the set practical for postpartum mothers or those with limited mobility.
- Breathability
Wicks moisture and vents heat to reduce night-sweat disruptions.
Why this is supported
The organic cotton jersey's open fiber structure allows air to circulate freely,
air flows freely, helping regulate body temperature throughout the night.
thesleepresource.comAt the same time, the fabric actively pulls moisture away from the skin:
pure organic cotton wicks moisture without trapping heat, reducing night sweats and minimizing disruptions.
thesleepresource.comThis moisture-wicking action keeps the fabric surface drier, denying dust mites and bacteria the humid microclimate they require, which is why
The fabric’s structure allows air to move freely around the body, which helps prevent moisture buildup that can attract dust mites and bacteria.
modernmama.com. The combination of passive ventilation and active moisture transport maintains a stable, dry sleep environment.
- Skin comfort
Minimizes skin friction and chemical residues for comfortable sensitive-skin sleep.
Why this is supported
Organic cotton is processed without the harsh bleaching, formaldehyde-based resins, and synthetic finishing agents used on conventional cotton, which means the fibers stay smoother:
Organic cotton often undergoes fewer harsh treatments during processing. As a result, the fibers may remain smoother and less coated.
ourpotluckfamily.comThis smoother fiber surface reduces skin friction, and
The natural softness of organic cotton provides a gentle touch that reduces friction during sleep.
modernmama.comAt the same time, the absence of residual chemicals protects sensitive skin:
Organic cotton lacks the harsh chemicals and pesticides used in conventional cotton farming.
modernmama.comand
the final fabric often contains fewer chemical residues.
ourpotluckfamily.comCustomer reviews confirm the result:
Very soft and wash well, fit is comfortable.
Customer review, February 25, 2026and
Beautiful pattern and very soft material I love that it’s 100% cotton
Customer review, January 13, 2026. Together, the research and lived experience establish that this jersey minimizes both mechanical and chemical irritants for sensitive sleepers.
- Wash durability
Softens with each wash; cold care reduces shrinkage and pilling.
Why this is supported
Unlike conventional cotton that may stiffen from chemical residues, the organic cotton jersey
the absence of harsh chemicals means the material stays soft wash after wash, providing consistent comfort night after night
theinspirationedit.com. However, organic cotton is not pre-shrunk and can pill over time, so the brand's recommended cold water wash and low-heat dry are necessary to preserve fit and minimize pilling; washing inside out on gentle cycle further protects the fabric. These care steps are a manageable tradeoff for the breathable and chemical-free benefits.
- Nursing design
Button-front top opens fully for one-handed nursing; chest pocket holds phone for feeds.
Why this is supported
The full-length button placket makes the top easy to open and close without untying or pulling over the head. As one source explains,
allow you to feed your baby quickly without fully changing clothes
ekouaer.com. The chest pocket provides
small but practical convenience
ekouaer.comfor a phone or lip balm during nighttime feeds. Additionally, the button-front design allows the top to be worn open over a tank or buttoned as a casual shirt, helping a postpartum mom
Feel more “put together” for visitors
ekouaer.com. Because the shirt opens completely at the front, it can be put on and removed without raising the arms overhead—a relief after a C-section or mastectomy.
- Sizing and care
Sleeves and pants run short; cotton may shrink in wash – size up or wash cold.
Why this is supported
One buyer reported that despite ordering the correct size, at 5'5"
the sleeves were about 6" from my wrist and the pants were cropped
Customer review, January 21, 2026. The organic cotton jersey
can shrink in the first wash if not pre-shrunk
Does this pajama set run true to size, and is the organic cotton jersey pre-shrunk to minimize shrinkage after washing?, which could make the fit even shorter. To maintain sizing, wash in cold water and tumble dry on low heat.
- Gift appeal
Pretty patterns and guest-ready styling make it a charming new-mother gift.
Why this is supported
The set's
pretty patterns and the option to add a matching robe make it a charming present.
use_caseIts hidden nursing-friendly and recovery features offer unexpected value for a new mother.
- Softness
Fabric softens with washing and stays soft through repeated laundering.
Why this is supported
Catalog verified that the fabric is designed to soften with each wash. Theinspirationedit.com explains that
the absence of harsh chemicals means the material stays soft wash after wash, providing consistent comfort night after night
theinspirationedit.com. A buyer review corroborates that the set is
Very soft and wash well, fit is comfortable.
Customer review, February 25, 2026. Together, these sources confirm the fabric's softness is maintained after repeated washing.
- Pilling
Pilling can occur but is minimized by gentle cold washing inside out.
Why this is supported
The product Q&A acknowledges that
Organic cotton jersey can develop some pilling over time, but washing inside out and on a gentle cycle helps preserve the fabric's appearance and shape.
How does the fabric hold up to repeated washing in terms of pilling, fading, and shape retention?This confirms that pilling is a potential issue but is manageable with proper care.
- Pattern appearance
Patterns are beautiful in person and accurately shown in photos.
Why this is supported
Customer reviews and the brand's Q&A confirm the set's pattern appeal:
Beautiful pattern and very soft material
Customer review, January 13, 2026The brand also states that while screen settings may cause slight variation, the patterns are faithfully represented in product images, for instance:
The patterns like 'Flower' and 'Polka Dot' are represented faithfully in our images.
How accurately do the product photos represent the actual colors, especially for patterns like 'Flower' and 'Polka Dot'?This appealing combination of attractive patterns and reliable representation makes the set a popular gift choice, as noted by buyers.
- Versatility
Button-front top works as loungewear layer and allows nursing access.
Why this is supported
The set's design supports wearing beyond sleep, making it feel more put-together for visitors:
Feel more “put together” for visitors
ekouaer.comAdditionally, the full-button front provides easy nursing access without overhead removal, as stated in deep research:
Easy nursing access Button-down fronts, wrap designs, or stretch necklines allow you to feed your baby quickly without fully changing clothes
ekouaer.com- Fabric
Organic cotton jersey stays soft, breathable, improves with wash.
Why this is supported
Deep research confirms organic cotton jersey gets softer with each wash:
the absence of harsh chemicals means the material stays soft wash after wash
theinspirationedit.com. Reviews echo this:
Very soft and wash well
Customer review, February 25, 2026and
very soft material
Customer review, January 13, 2026. Additionally, its structure allows air to flow freely,
air flows freely, helping regulate body temperature throughout the night.
thesleepresource.com, and wicks moisture without trapping heat:
pure organic cotton wicks moisture without trapping heat, reducing night sweats and minimizing disruptions.
thesleepresource.com- Fit & delivery
Sleeves and legs run short; no returns after wash; inspect package.
Why this is supported
According to a customer review:
I ordered the correct size (from chart and other Simon products I have bought) However, at 5'5", the sleeves were about 6" from my wrist and the pants were cropped
Customer review, January 21, 2026. Another review states:
Returns not accepted after washing — test fit before laundering, as you cannot return laundered items.
gotcha. Furthermore, a buyer warns:
Risk of incomplete set delivery — one buyer received only the top, so inspect package upon arrival.
gotcha- Pre-use inspection
Confirm delivery completeness and test fit pre-wash; no returns on laundered items.
Why this is supported
One buyer reported receiving only the top without the pants, so the package should be inspected on arrival to confirm the complete set. Additionally, a Q&A response notes that
Organic cotton jersey can shrink in the first wash if not pre-shrunk; washing in cold water and tumble drying on low heat can minimize shrinkage.
Does this pajama set run true to size, and is the organic cotton jersey pre-shrunk to minimize shrinkage after washing?, and the vendor does not accept returns on laundered items, so buyers should confirm fit before the first wash.
Image Analysis
3 images- 01
Product
A two-piece navy pajama set with all-over small white polka dots, white piped trim along the collar and front placket, a chest patch pocket, white buttons, and relaxed cropped trousers; shown worn by a seated model.
- Top silhouetteLong-sleeve, button-front pajama top with a notched collar and visible white piping along collar and front placket.
1 region
x 0.18 · y 0.09 · w 0.64 · h 0.44 (high) - Chest pocketSquare patch pocket on the left chest, patterned with the same white polka dots and bounded by the navy fabric.
1 region
x 0.44 · y 0.27 · w 0.12 · h 0.12 (medium) - ButtonsRound white buttons down the front placket, three visible.
1 region
x 0.40 · y 0.37 · w 0.18 · h 0.28 (medium) - Pants silhouetteRelaxed straight-leg cropped pajama trousers matching the top in navy with white polka dots; hem falls above the ankle on the seated model.
1 region
x 0.12 · y 0.51 · w 0.76 · h 0.40 (high) - All-over patternEvenly spaced small white polka dots printed across both top and pants.
1 region
x 0.16 · y 0.12 · w 0.72 · h 0.76 (high) - Fabric appearanceSoft, slightly matte knit fabric with subtle surface drape and slight stretch visible at sleeve and pant folds.
1 region
x 0.18 · y 0.20 · w 0.64 · h 0.62 (medium)
Other
Studio lifestyle shot of a seated model against a pale neutral background with soft even lighting and minimal shadows.
- Model poseSeated cross-legged on a flat surface, right elbow resting on knee with hand near face; garment shown on a human model.
1 region
x 0.02 · y 0.00 · w 0.96 · h 0.98 (high) - BackgroundUniform pale cream/very light beige studio background and floor with soft shadow where the model contacts the floor.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Lighting and shadowSoft, diffused frontal lighting producing gentle shadows under limbs and slight highlights on the model's skin and fabric folds.
- Image cropFull-body crop from just above the head to the toes with slight right-side cropping of the model's right hand and forearm.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high)
Colors
deep navy· main fabric#221E31white· polka dots, piping and buttons- Top silhouetteLong-sleeve, button-front pajama top with a notched collar and visible white piping along collar and front placket.
- 02
Product
Front view of a two-piece long-sleeve pajama set in a navy knit with small white polka dots and white piped trim; button-front top with chest patch pocket and relaxed cropped pants with visible drawstring.
- SilhouetteTwo-piece pajama set shown on a model: a long-sleeve button-up top and straight relaxed pants that end above the ankles.
1 region
x 0.18 · y 0.06 · w 0.64 · h 0.88 (high) - Fabric patternAll visible garment panels feature evenly spaced small white round polka dots on a dark navy background.
1 region
x 0.18 · y 0.06 · w 0.64 · h 0.88 (high) - Collar and pipingNotched collar with contrasting narrow white piping that follows the collar edge and the front placket.
1 region
x 0.33 · y 0.08 · w 0.34 · h 0.18 (high) - Front closureCenter front button closure with visible round buttons running down the torso; piping runs alongside the button line.
1 region
x 0.37 · y 0.22 · w 0.26 · h 0.36 (high) - Chest pocketSingle patch pocket on the left chest placed on top of the polka dot pattern.
1 region
x 0.42 · y 0.18 · w 0.11 · h 0.11 (high) - Waist detailThin white drawstring visible at the pants waist, tied loosely and hanging down the front.
1 region
x 0.42 · y 0.44 · w 0.16 · h 0.12 (high) - Sleeves and cuffsLong sleeves with a straight hem finishing at the wrist; no visible cuff trim.
2 regions
x 0.18 · y 0.18 · w 0.22 · h 0.30 (high); x 0.60 · y 0.18 · w 0.20 · h 0.28 (high) - Pant hemStraight-cut pant legs with a simple stitched hem that falls cropped above the ankles.
1 region
x 0.30 · y 0.62 · w 0.40 · h 0.30 (high) - Texture impressionFabric appears soft and slightly drapey consistent with a knit sleepwear material; small natural folds and drape are visible.
1 region
x 0.30 · y 0.20 · w 0.40 · h 0.60 (medium)
Other
Studio shot of a model wearing the product against a plain light beige background with soft even lighting and minimal shadow.
- Model poseModel stands facing forward with hands behind the back and slight weight shift, showing the front of the set.
1 region
x 0.18 · y 0.06 · w 0.64 · h 0.88 (high) - BackgroundUniform light beige studio background with no props or visible set elements.
- Lighting and shadowEven soft studio lighting producing faint shadows behind the model toward the left side of the image.
- Image framingFull-body crop showing the model from head to feet with small margin above the head and floor visible at the bottom.
Colors
navy blue· main fabric#231E31white· polka dots and trim- SilhouetteTwo-piece pajama set shown on a model: a long-sleeve button-up top and straight relaxed pants that end above the ankles.
- 03
Product
Rear view of a two-piece navy pajama set with all-over small white polka dots; long-sleeve collared top with visible back yoke seam and relaxed straight-leg cropped pants.
- Overall silhouetteModel seen from rear wearing a relaxed-fit long-sleeve pajama top and matching straight, slightly cropped pants; top extends past the hips and the pants fall to above the ankles.
1 region
x 0.18 · y 0.06 · w 0.64 · h 0.88 (high) - Fabric patternEvenly spaced small white polka dots printed across both top and pants on a dark navy background.
1 region
x 0.28 · y 0.08 · w 0.44 · h 0.80 (high) - Collar detailNotched pajama collar with a visible narrow contrasting trim along the collar edge.
1 region
x 0.42 · y 0.06 · w 0.16 · h 0.09 (high) - Back yoke seamHorizontal seam across the upper back forming a back yoke under the shoulders.
1 region
x 0.28 · y 0.18 · w 0.44 · h 0.08 (high) - Sleeve and cuffLong sleeves with simple straight cuffs; sleeves reach the wrist area and show the same polka dot pattern.
2 regions
x 0.23 · y 0.24 · w 0.16 · h 0.24 (high); x 0.61 · y 0.26 · w 0.14 · h 0.24 (high) - Top hemStraight hem at the bottom of the top that overlaps the waistband area of the pants.
1 region
x 0.33 · y 0.52 · w 0.34 · h 0.08 (high) - Pants cutLoose straight-leg pants with a relaxed fit and a slightly cropped length ending above the ankles.
1 region
x 0.28 · y 0.58 · w 0.44 · h 0.36 (high) - Fabric surfaceFabric shows a soft, slightly brushed surface texture suggesting a knit or flannel-like finish.
1 region
x 0.34 · y 0.20 · w 0.32 · h 0.60 (medium) - Visible skin and handsModel's hands rest at the sides with one hand partially visible between top and hip; ankles and feet are bare.
2 regions
x 0.36 · y 0.50 · w 0.12 · h 0.22 (high); x 0.44 · y 0.86 · w 0.28 · h 0.12 (high)
Other
Studio rear-shot of a model standing against a plain light beige background with soft, even lighting and minimal shadow; image is vertically oriented and centered on the model.
- Shot compositionFull-length rear view of the model centered in frame with generous vertical space above the head and visible floor at the bottom.
- Background and lightingSmooth off-white to light beige background with soft even studio lighting that produces faint shadows on the floor behind the model.
- Image qualityHigh-resolution, well-focused image with natural color rendering and no visible compression artifacts.
Colors
dark navy· main fabric#2E2B41white· polka dots- Overall silhouetteModel seen from rear wearing a relaxed-fit long-sleeve pajama top and matching straight, slightly cropped pants; top extends past the hips and the pants fall to above the ankles.
Documents & Data
Customer Reviews
18 total18 reviews · out of 5
Pyjama imprimé
Belle qualité
Doux et confortable
Très joli, doux et confortable pyjama. Contente de mon achat. Je recommande!
Livraison incomplète
Je n’en ai rien pensé parce que je n’ai reçu que le haut
Happy with purchase
Pretty design and fabric. Bought the matching dressing gown as well.
Pyjama set
Pretty and comfy
Smaller than expected
I have always found size large in the Miyu pyjama sets a perfect fit. Unfortunately this set is comparatively smaller. Since they have been washed I sadly can no longer return them. The fabric is lovely, however.
pyjamas
lovely soft material, very comfortable, but don't like that the arms and legs are short
Très satisfaite
Belle qualité
Comfy Cotton PJs
Very nice feel and fit
Super confo
Je l’adore
Comfortable & Cute
Very soft and wash well, fit is comfortable.
Parfait
Parfait
Very short sleeves and pants.
I ordered the correct size (from chart and other Simon products I have bought). However, at 5'5", the sleeves were about 6 " from my wrist and the pants were cropped. (Strange, as I find that most tops have sleeves that are too long). And this was not how they were shown in the photo. They appeared to be well made. (AND there is one pocket on the back of the pajama bottoms).
pyjama jersey
confortable. chaud. doux.
Beautiful pattern
Beautiful pattern and very soft material. I love that it’s 100% cotton. I’m typically a small, but the x-small fit well at the waist. Unfortunately, the pants don’t have pockets.
Tel que sur le site
Tel que sur le site
Pyjama Milyu
Très confortable.
PJ
Very comfortable, attractive, stylish
Reddit Insights
1 threads · r/femalefashionadviceReddit discussion about the Miiyu Comfortable Trimmed Pyjama Set is extremely limited, with only a single positive mention of a Miiyu brand modal nightgown.
The sole mention describes a Miiyu product as an 'old favourite', indicating satisfaction, but it is not specifically about the pajama set.
Themes
Use Cases
- Sleepwear/nightgown
Source Threads
User praises Miiyu modal nightgown from Simons
I also have a modal nightgown from Simons (Miiyu) that is an old favourite.
u/___butthead___View thread →