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.