Long Sleep Dress
in Black Double Gauze
We offer custom sizing on select pieces - Learn more
Sale items are final sale. See full refund policy
The same great oversized silhouette in the body and sleeves as our best-selling Sleep Shirts, but we've added a full length, gathered skirt and pockets for a new longer Sleep Dress that you'll reach for again and again. The Double Gauze fabrics have been extremely popular since we first offered them in Resort 2020, so this black version became a quick favourite. This lightweight, pillowy fabric can be described as "feeling like you are wearing a duvet."
- An oversized fit, with a loose armhole so you can move around comfortably
- Stand collar with button placket, unbutton the shirt and it comes off easily, button it up and you’ll keep the drafts out
- Side seam pockets
- Midi length, hem should hit between mid-calf and ankle on most
- Made in Canada with pride
- Lightweight, pillowy-soft double gauze
- 100% cotton
- We describe this fabric as medium light weight, opaque, super soft, and textured. See our Fabric Guide below for more information.
- Cold water wash and hang dry, take care of your shirt and it will last you for years
- Brand: The Sleep Shirt
- See this item in other fabrics: Long Sleep Dress
Sizing Tips
- Model is 5'9" and wearing a One Size
- Available in One Size, Plus and X Plus
- One size: Chest width is 24" (circumference 48"), collar to shoulder is 7", placket length is 10.5", sleeve length is 22", and front length is 48.25"
- Plus size: chest width is 26" (circumference 52"), high hip width is 32.5" (65" circumference), sleeve length is 23", bicep measurement is 9.5" (circumference 19"), and length at centre back is 50.25"
- X Plus size: chest width is 32" (circumference 64"), high hip width is 34" (68" circumference), sleeve length is 23", bicep measurement is 10" (circumference 20"), and length at centre back is 51.75"
- Use the Sizing Chart below to determine what size best fits your body measurements. Please note that the measurements above are of the actual item
- Visit our Plus Size Fit Guide for more information on the fit of our items sizes XL and larger
This sizing chart allows you to determine what size best fits your body measurements. Please note that the measurements listed under “SIZING TIPS” for the specific product above are of the actual item, whereas the measurements provided in the chart below should be matched to your body measurements. This chart applies to our women's collection. If you are shopping from our men's range, please refer to the measurements listed on each product profile in the section "SIZING TIPS."
Kindly be aware that measurements, both on this chart and the individual garments, may vary by approximately 5%.
Choosing the right fabric is personal. Weight, transparency, and texture all influence how a garment feels, and how you’ll experience it over time.
Below is a simple guide to the fabrics we use and how they behave.
COTTON 
Smooth Shirting Cotton
Refined shirting cotton chosen for its smooth hand and polished finish. Breathable and durable, it softens beautifully with washing while maintaining its structure.
Fabric Details
• Weight: Medium-Light
• Opacity: Opaque or Semi-Opaque (varies by colour)
• Feel: Smooth
Oxford Cotton
Classic Oxford cotton with gentle texture, structure, and depth in the weave. It begins crisp and relaxes with time, developing softness and character through wear.
Fabric Details
• Weight: Medium
• Opacity: Opaque
• Feel: Crisp / Structured
Cotton Voile
Lightweight cotton voile is airy and delicate against the skin. Ideal for warmer nights and easy layering.
Fabric Details
• Weight: Light
• Opacity: Semi-Opaque
• Feel: Soft
LINEN
Woven from European flax and valued for its natural texture and understated sophistication. Linen breathes beautifully and softens over time, developing a relaxed elegance unique to natural fibres.
Structured Linen (More Substantial)
Fabric Details
• Weight: Medium-Light
• Opacity: Opaque
• Feel: Textured / Structured
Lightweight Linen (Airy)
Fabric Details
• Weight: Light
• Opacity: Semi-Opaque
• Feel: Textured / Airy
FLANNEL
Cotton Flannel
High-quality cotton flannel brushed for softness and warmth. Comforting without heaviness while remaining breathable.
Fabric Details
• Weight: Medium
• Opacity: Opaque
• Feel: Brushed / Super Soft
Cotton–Cashmere Flannel Blend
Brushed cotton flannel blended with a touch of cashmere for additional softness and refinement. Warm yet lightweight and exceptionally gentle against the skin.
Fabric Details
• Weight: Medium
• Opacity: Opaque
• Feel: Brushed / Super Soft
Understanding Weight, Opacity & Feel
We describe our fabrics using three simple characteristics:
Weight
Indicates the substance of the fabric and how it drapes.
• Light – airy and breathable
• Medium-Light – softly structured and versatile
• Medium – more substantial, ideal for cooler months
Opacity
Indicates how much light passes through the fabric.
• Opaque – not sheer
• Semi-Opaque – slightly transparent in bright light
• Sheer – visibly transparent
Feel
Describes how the fabric behaves in the hand and on the body.
• Smooth – flat, refined surface
• Crisp – structured with gentle body
• Soft – fluid and drapey
• Brushed – lofted and warm
• Textured – visible weave or surface variation
• Airy / Loose Weave – open construction with lightness
At The Sleep Shirt, fabric is chosen not only for how it looks, but for how it performs — wash after wash, season after season.
If you have questions about a specific style, we’re always happy to help.
Learn more about our fabrics.
Full-priced items may be returned or exchanged within 14 days of delivery, provided they are unworn, unwashed, unaltered, and in original condition.
Sale items are final sale and not eligible for return or exchange.
Purchases made with incentive codes of 20% or less are eligible for exchange or store credit only.
View the complete Refund Policy for additional information.
Enjoy free shipping within Canada on orders over $300 (before taxes).
Most orders ship within 2–3 business days, and during sales or busy periods, please allow up to 5 business days. Express orders are prioritized and ship within 1 business day.
International Orders (excluding the U.S.)
International shipments may be subject to duties, taxes, and import fees charged by your local customs authority. These charges are the responsibility of the customer upon delivery and are non-refundable, even in the event of a return or exchange.
If you have questions about shipping times, tracking, or international delivery, please visit our Shipping FAQs or contact us at info@thesleepshirt.com
