The patient does the correct things at bedtime: darkness, temperature, fixed schedule, no screens. The consultation reviews the list and does not find the error. What the list does not contain is the day that arrived at that night.
The clinician who has treated enough insomnia recognizes the profile. This is not mainly poor sleep hygiene. It is a problem of circadian anchoring.
The clinical question is not what to add to bedtime. It is what structure the day has before the patient reaches the bed.
The circadian system needs signals across twenty-four hours to maintain synchrony: first meal timing, natural light exposure, the evening decline in intensity, the moment activity begins to yield. When those signals are variable, absent or poorly sequenced, the internal oscillator loses reference. Scheer and colleagues, in a controlled model of circadian misalignment, documented reduced sleep efficiency and metabolic disruption, including changes in leptin, glucose and insulin. The point is not that every patient reproduces that experiment. The point is that the day can fail to prepare the physiology of the night.
The distinction matters. Conditioned insomnia has a place: the bed, the room, the learned association between environment and wakefulness. Hyperarousal insomnia has a substrate: the autonomic system on sustained watch. Circadian anchor loss has a structure: a whole day without time signals the organism can use. Reading which presentation is in front of the clinician changes what the clinician does.
Dinacharya, the Ayurvedic principle of daily rhythm, is not generic routine advice here. It is the reading of the day as a unit of treatment. Vata needs regularity as an anchor. Pitta needs a real descent from intensity. Kapha needs adequate activation during the day so homeostatic pressure can accumulate.
Transcendental Meditation (TM) is framed only as activation-regulation work. Walton and colleagues associate regular practice with lower neuroendocrine activation related to stress, including cortisol. A less activated system may receive circadian signals with greater sensitivity, but TM is not presented as a treatment for insomnia.
The clinician who can read the patient’s day as part of the case gains access to the correct unit of analysis. The bedtime problem may be the symptom of a day that did not prepare the night.
The clinician who recognizes one of their own patients in this article already has the right clinical question.
The next step is learning to read twenty-four hours as a rhythmic unit, not only the ritual before bed.
It is not what to add to the night routine. It is what formation makes it possible to distinguish circadian anchor loss from conditioning and hyperactivation.