Sleep is not a passive state but an active biological process governed by circadian rhythms, homeostatic sleep drive, and environmental cues. Quality sleep depends on consistent timing, optimized environments, and behavioral strategies that align with your body's natural sleep-wake cycle. Sleep restriction and stimulus control—cornerstones of cognitive behavioral therapy for insomnia (CBT-I)—are among the most effective non-pharmaceutical interventions, with research showing consistent improvements in sleep efficiency and total sleep time. The key insight: sleep hygiene is not about perfection but about creating conditions that reduce arousal, strengthen bed-sleep associations, and honor your circadian biology.

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