The House Just Voted to End Clock Changes. A Sleep Doctor Has Thoughts.

For years, sleep medicine scientists have been making the same argument: The twice-yearly clock change is not just inconvenient, it is harmful. Now, with the U.S. House of Representatives voting 308 to 117 to make daylight saving time permanent, that argument is getting its closest brush with becoming law in decades.

The bill now heads to the Senate, where its path remains uncertain. But for the millions of Americans who dread the annual spring forward, and for the sleep specialists who have long documented its consequences, the House vote is a meaningful moment worth understanding.

Sudha Tallavajhula, M.D., professor of neurology at McGovern Medical School at UTHealth Houston and a sleep medicine expert, has a clear view on the matter. When The Educated Patient asked about daylight saving time and its impact on sleep health, her first piece of advice was pointed: “Contact your legislators and ask them to do away with daylight saving time altogether. Sleep medicine scientists and organizations like the American Academy of Sleep Medicine have been advocating for this for years because the time shift is not particularly helpful and may actually be harmful.”

Why Losing One Hour Hits Harder Than It Should

Every spring, millions of Americans lose an hour of sleep and spend the following days feeling groggy, disoriented and out of sync. Tallavajhula describes the phenomenon as a kind of nationwide forced jet lag.

“Basically, you are forced to wake up earlier than usual, and for many people that is not an easy thing to do,” she explained.

The human body’s circadian cycle runs closer to 24.2 hours, which means it is naturally easier for most people to stay up later than to fall asleep earlier. When the clocks spring forward, many people simply cannot compensate by going to bed an hour earlier the night before, meaning they end up sleeping less and missing out on what is often the deepest portion of their sleep cycle.

That lost early morning sleep, Tallavajhula noted, is a significant part of why so many people wake up feeling foggy in the days after the spring time change.

Who Feels It Most

While almost everyone experiences some disruption, the clock change hits certain populations particularly hard. People with insomnia, sleep apnea, narcolepsy and other sleep disorders are especially vulnerable to any shift in their sleep schedule.

“Many people with sleep disorders are also more vulnerable to changes in their schedule,” Tallavajhula said. “Think about patients with narcolepsy who need more sleep than others, or people with sleep apnea who do not feel well unless they use their CPAP for a certain number of hours each night.”

The Debate Around Permanent DST

Not everyone agrees that making daylight saving time permanent is the right answer. Proponents of the bill argue that eliminating the twice-yearly clock change would spare Americans from the disruption to sleep schedules, reduce seasonal depression and create more consistency in daily life. Detractors, including some farming communities, have raised concerns about economic consequences and the challenges of later winter sunrises.

The American Academy of Sleep Medicine has taken a clear position, advocating not just for an end to the clock changes but specifically for a switch to permanent standard time rather than permanent daylight saving time, arguing that standard time more closely aligns with the body’s natural circadian rhythms. That distinction is one the Senate debate is likely to revisit.

What to Do While You Wait for Washington

Whether or not the bill ultimately becomes law, the clock change remains a reality for now. Tallavajhula recommends a gradual approach to easing the transition in the days surrounding any time change, including shifting bedtime and wake time earlier by 15 to 20 minutes for two to three days in advance.

Morning sunlight is among the most powerful tools available. “After waking up, try to get exposure to natural sunlight as soon as possible,” she said. “Sunlight helps reset the body’s internal clock more effectively than almost anything else.” Shifting meals, workouts and other daily routines earlier by small increments in the days surrounding the change can also help the body adapt more smoothly.

For those who find the adjustment lasting longer than expected, Tallavajhula offered a useful benchmark. Most people recover from jet lag within about a week to ten days. If sleep disruption is persisting well beyond that, particularly with significant daytime impairment, it may be worth speaking with a sleep specialist about whether an underlying sleep disorder deserves evaluation.

For now, the clock change remains. But for the first time in a long time, there is a real legislative conversation happening about whether that has to stay true forever.