Written by Klarity Editorial Team
Published: Nov 10, 2025

For most people, losing or gaining an hour of sleep twice a year is a minor inconvenience. But if you’re among the millions who struggle with insomnia or sleep disorders, daylight saving time changes can wreak havoc on your carefully balanced sleep schedule. Those early morning wake-ups become even more challenging, medication timing gets thrown off, and your circadian rhythm—which you’ve worked so hard to regulate—suddenly faces a new disruption. At Klarity Health, we regularly hear from patients who experience up to two weeks of sleep disturbances following time changes, leaving them feeling frustrated, exhausted, and isolated in their struggle.
Your body operates on an internal clock known as your circadian rhythm, which regulates sleep-wake cycles, hormone release, body temperature, and other important bodily functions. This internal clock is synchronized with external cues, particularly light exposure.
When we artificially shift time by an hour, we’re asking our bodies to make an abrupt adjustment, which goes against our natural biological programming. For those with healthy sleep patterns, this adjustment may take a few days. But for insomnia sufferers, this disruption can compound existing sleep difficulties.
‘The reason time changes affect insomnia patients more severely is that their sleep architecture is already fragile,’ explains Dr. Michael Breus, a clinical psychologist and sleep specialist. ‘Any disruption to routine can trigger a cascade of sleep problems that take much longer to resolve.’
If you’re someone who rises extremely early—say 4:45 AM like many of our patients—the challenges are particularly acute. When ‘falling back’ in autumn, you may find yourself waking at 3:45 AM instead, facing hours of darkness before the rest of the world awakens. During ‘spring forward,’ you lose a precious hour of sleep, potentially starting your day with increased sleep debt.
Begin adjusting your bedtime and wake time by 15-minute increments in the days leading up to the time change. This gradual shift allows your body to adapt more naturally than an abrupt one-hour change.
Light exposure is the most powerful tool for regulating your circadian rhythm.
For those taking medications for sleep or other conditions, time changes can affect optimal dosing schedules.
‘We recommend patients work with their healthcare providers to create a transition plan for medication timing during daylight saving changes,’ says a psychiatric nurse practitioner at Klarity Health. ‘For sleep medications in particular, it’s important not to make abrupt changes in timing, as this could affect both efficacy and side effects.’
During transition periods, sleep hygiene becomes even more critical:
If you’re experiencing significant daytime fatigue during the adjustment period, a short nap (20-30 minutes) before 3 PM can help reduce sleep debt without interfering with nighttime sleep.
Exercise can help regulate your sleep-wake cycle, but timing is crucial. Morning or early afternoon exercise can promote better sleep, while evening workouts may be too stimulating for some people with insomnia.
For some people with severe insomnia, temporary use of over-the-counter or prescription sleep aids may help bridge the gap during time changes. Always consult with a healthcare provider at Klarity Health or another trusted medical practice before starting any sleep medication.
If you struggle to fall asleep initially, the spring time change may worsen your condition as you try to sleep an hour ‘earlier’ than your body is accustomed to. Consider:
If your insomnia manifests as waking too early, the fall time change can be particularly challenging:
The negative health effects of daylight saving time changes have led many health organizations, including the American Academy of Sleep Medicine, to advocate for abolishing time changes altogether.
Studies have shown that in the days following time changes, there are increases in:
These statistics underscore that the struggle faced by insomnia sufferers reflects a broader public health issue.
If you find that your sleep disruption extends beyond two weeks after a time change, or if your insomnia symptoms severely impact your daily functioning, it may be time to consult with a healthcare provider. Providers at Klarity Health specialize in sleep disorders and can offer personalized treatment plans that account for both the immediate challenges of time changes and long-term sleep health.
With transparent pricing and options for both insurance and self-pay, getting help for sleep disorders is accessible regardless of your insurance situation.
Time changes present a particular challenge for those with insomnia and sleep disorders, but with proper preparation and management strategies, you can minimize their impact. Remember that you’re not alone in this struggle—millions of people experience similar difficulties, and healthcare providers increasingly recognize the significance of these twice-yearly disruptions.
By implementing the strategies outlined above and seeking professional help when needed, you can navigate daylight saving time transitions with greater ease and protect your sleep health year-round.
For most people, adjustment takes 2-7 days, but for those with insomnia or sleep disorders, it can take up to two weeks or longer.
Melatonin supplements may help some people adjust their circadian rhythms more quickly. Typically, a low dose (0.5-3mg) taken 2 hours before your desired bedtime can be effective, but consult with a healthcare provider first.
For most people with insomnia, a gradual transition works better than an immediate switch. Try adjusting by 15-minute increments over several days.
Consistent sleep cues are crucial: darken your environment, follow the same bedtime routine, and maintain regular eating and exercise schedules to provide your body with consistent signals.
Foods containing tryptophan (like turkey, milk, and bananas) and complex carbohydrates may support melatonin production. Avoiding heavy, spicy, or high-sugar foods before bed can also help prevent sleep disruption.
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