Most chronic sleep problems are not solved by another supplement. Dr. Casey Dean walks through the two-process model, CBT-I as first-line therapy, and the proper role of melatonin as a chronobiotic — not a sedative.
By Dr. Casey Dean, DO · Board-Certified Family Medicine Physician · Published 2026-05-01
Roughly one in three American adults reports getting less than seven hours of sleep on a typical night, and about 10% meet the clinical criteria for chronic insomnia disorder — three or more nights of sleep difficulty per week, lasting at least three months, with significant daytime impairment. For decades, the standard answer has been "take some melatonin and put on blue-light glasses." In 2026, the evidence base for sleep medicine looks very different — and most of what works does not come in a bottle.
At Trinity Family Medicine, patients regularly ask us how to fix sleep that feels broken. The honest answer is that sleep is governed by two complementary systems, and both can be measured, treated, and — in most cases — restored without prescription sedatives. This guide walks through what the current sleep medicine guidelines actually say, what the science shows, and what we use clinically with our patients across Texas.
Sleep is not a passive shutdown. During the roughly seven to nine hours your body spends asleep, several active biological processes take place. Memory consolidation moves short-term experiences into long-term storage. The glymphatic system clears metabolic waste from brain tissue, including beta-amyloid associated with Alzheimer's disease. Growth hormone is secreted in pulses during slow-wave sleep, supporting tissue repair. Glucose metabolism, blood pressure regulation, and immune function all reset overnight.
For most adults with a true circadian rhythm issue (not chronic insomnia), the evidence supports a low dose — 0.3 to 0.5 mg — taken several hours before the desired sleep time, not at bedtime. High doses (3 to 10 mg) are common over the counter but are not better, and chronic high-dose use can blunt receptor sensitivity. If you are taking melatonin nightly without a clear circadian indication, talk with your physician about whether it is the right tool for your situation.
For many patients, yes. Genuine Delayed Sleep-Wake Phase Disorder is a diagnosable condition where the circadian rhythm runs late relative to social demands. The first-line evidence-based treatment is timed bright light exposure in the morning, often combined with low-dose timed melatonin in the early evening. With consistent application, most patients can advance their sleep phase by one to two hours over a period of weeks. Genetic chronotype plays a role in the baseline, but it does not lock you into a fixed schedule.
Yes — and this is more clinically meaningful than most patients realize. Sleep onset depends on a drop in core body temperature of about 2°F. If your bedroom is too warm to allow that drop, sleep latency is prolonged and slow-wave sleep is reduced. AASM and Sleep Foundation guidance generally recommends a bedroom temperature between 60°F and 67°F. In Texas summers, that requires functioning air conditioning, breathable bedding, and sometimes a fan for surface cooling.
Pick a wake time you can hold seven days a week — including weekends — and protect it for two to three weeks. Within the first hour of waking, get outside for 15 to 30 minutes if possible. Do not adjust your bedtime; let it adjust itself. Most patients see meaningful improvement in sleep onset and morning alertness within two weeks of doing only this. If you do not, that is a useful clinical data point and a reason to schedule an evaluation.
Anyone who snores loudly, has been told they stop breathing during sleep, wakes unrefreshed despite adequate time in bed, has morning headaches, or experiences daytime sleepiness should be screened. Validated screening tools like STOP-BANG and the Epworth Sleepiness Scale can be administered during a telehealth visit. Sleep apnea is dramatically underdiagnosed, particularly in women, in patients who are not overweight, and in patients without classic features. If suspicion is moderate or higher, a home sleep apnea test is often the appropriate next step.
Yes. The history, physical risk-factor assessment, screening questionnaires, sleep diary review, and initiation of CBT-I or chronobiotic treatment can all be conducted via secure video visit. Home sleep apnea testing, when indicated, can be ordered electronically and shipped to your home. In-lab polysomnography requires an in-person sleep center but the order and follow-up management can be handled via telehealth. At Trinity Family Medicine, Dr. Dean and Dr. Kline see sleep complaints regularly via telehealth across Texas, with visits starting at $49.99 and no insurance required.