
How does textured hair’s structure make it vulnerable at night?
Textured hair's elliptical shape, lifted cuticles, and uneven oil distribution make it prone to friction damage and moisture loss during sleep.

How does high porosity hair lose moisture?
High porosity hair loses moisture quickly because its lifted cuticle scales allow water to evaporate rapidly, a process exacerbated by damage and environmental factors.

What sleep habits can dry out curly hair?
Nightly friction with absorbent fabrics and unrestrained hair positions can deplete curly hair's moisture, leading to dryness and fragility.

How does sleep friction affect textured hair’s hydration?
Sleep friction against absorbent, rough surfaces causes textured hair to lose vital moisture by disrupting its protective outer layer.

How does hair porosity affect nightly moisture loss?
Hair porosity dictates how readily strands absorb and release moisture, making nightly protection and tailored routines essential for retention.

Sleep-Induced Hair Damage
Meaning ❉ Sleep-induced hair damage describes the physical and moisture-related harm textured hair experiences during sleep, often intensified by environmental factors and systemic inequities.

How do friction and moisture loss affect hair health overnight?
Overnight friction and moisture loss compromise hair's protective cuticle and internal hydration, leading to dryness, breakage, and frizz.

What is the role of hair porosity in moisture loss during sleep?
Hair porosity, dictated by cuticle scale arrangement, directly controls moisture absorption and retention, profoundly impacting overnight hydration.