What to Do When You Can’t Go to Sleep at Night

Lying awake unable to sleep is one of the most frustrating experiences in daily life, but the single most effective thing you can do in that moment is also the most counterintuitive: stop trying. Effort and sleep work against each other. The harder you push yourself to drift off, the more alert your brain becomes, because the act of trying activates the same stress-arousal circuits that keep you awake. What actually helps ranges from simple physical tricks you can use tonight to longer-term behavioral changes that reshape how your brain relates to the bed itself. Some widely recommended remedies, like pink noise machines and antihistamines, turn out to be less helpful than people assume.

Get Out of Bed

If you have been lying there for roughly 20 minutes and sleep feels nowhere close, get up. Move to another room, do something low-key under dim lighting, and return to bed only when you feel genuinely drowsy. This technique, called stimulus control, is one of the most studied single interventions for insomnia, and systematic reviews consistently find it effective. One meta-analysis found that stimulus control produced moderate to large improvements in how long it took people to fall asleep compared with doing nothing, with effect sizes ranging from about 0.4 to 0.85 depending on the outcome measured.¹ A separate network meta-analysis confirmed it is effective, while also noting that not every instruction in the traditional stimulus control package seems equally important.²

The logic is straightforward. When you spend hours tossing and turning, your brain starts associating the bed with wakefulness and frustration rather than sleep. Getting up breaks that association. You do not need to do anything productive; in fact, productive activities can make things worse by waking you up further. Read a dull book, fold laundry, sit in a dim room. The point is to let drowsiness build without forcing it. Once your eyelids feel heavy, go back to bed.

Stop Watching the Clock

Turn your phone face down. Move the alarm clock to a drawer. One of the most reliably unhelpful things you can do during a sleepless night is check the time, and research has pinpointed exactly why. In controlled experiments, people who monitored a clock while trying to fall asleep reported more worry and took longer to fall asleep than people given a neutral monitoring task, and this held true for both good sleepers and people with diagnosed insomnia.³ Clock-watchers also overestimated how long they had been awake, which piled on more anxiety.

This is not just a quirk of personality. Time-monitoring behavior commonly occurs among insomnia patients and actively perpetuates the problem by fueling frustration about sleeplessness.⁴ Every glance at the clock triggers a mental calculation: “If I fall asleep right now, I’ll get five hours… four hours… three hours…” Each recalculation ratchets up the stress response. Removing the clock from sight eliminates the trigger entirely.

Slow Your Breathing

Your nervous system has two modes that matter here. The stress-activated branch keeps you alert, and the rest-and-digest branch helps you wind down. Slow, deep breathing shifts the balance toward the calmer branch. Researchers have proposed that breathing at roughly six breaths per minute can be a useful add-on treatment for insomnia, because it counteracts the overactive stress signaling that characterizes poor sleepers.⁵ A pilot study using polysomnography found that slow breathing before bed produced a measurable decrease in heart rate and a temporary increase in the body’s relaxation response that persisted for at least 30 minutes after the exercise ended.⁶

The specific method matters less than the pacing. The popular “4-7-8” technique (inhale for four counts, hold for seven, exhale for eight) works largely because it slows you to around six breaths per minute. You can also simply count to five on each inhale and five on each exhale. The key is making the exhale at least as long as the inhale, because that is the part that activates the calming branch. Do this for five to ten minutes. Even if you do not fall asleep immediately, you will likely feel noticeably less wound up.

Redirect Your Thoughts

Racing thoughts are the hallmark of a sleepless night, and trying to suppress them only amplifies them. Two cognitive strategies with research support take a different approach: instead of silencing the mind, they give it something harmless to do.

The first is called the cognitive shuffle. You pick a random letter, then imagine unrelated objects that start with that letter, spending about five to fifteen seconds on each one before moving to the next. So you might think of “banana,” then “bridge,” then “balloon,” with no attempt to connect them into a story. The technique works by mimicking the kind of loose, fragmented thinking that naturally occurs as you drift off, while preventing the focused worry that keeps you awake.⁷ It sounds too simple to work, and that is partly the point. The task is engaging enough to displace anxious thoughts but boring enough to let your brain slide toward sleep.

The second approach is paradoxical intention. Instead of trying to sleep, you try to stay awake. You lie in bed with the lights off and gently challenge yourself not to fall asleep. Early experimental work found that people given this instruction showed significant improvements on multiple sleep measures compared with placebo and no-treatment groups.⁸ The mechanism is simple: it removes the performance anxiety around sleep. When you are no longer pressuring yourself to fall asleep, the arousal that was keeping you awake has nothing to feed on.

Dim the Lights Well Before Bed

If you struggle to fall asleep regularly, your evening lighting may be a bigger factor than you realize. Your body’s internal sleep signal depends heavily on melatonin, and ordinary room light is enough to suppress it. In one study, exposure to typical indoor lighting before bedtime delayed the onset of melatonin in 99% of participants and shortened how long melatonin stayed elevated by about 90 minutes.⁹ That is a substantial shift in your body’s perception of nighttime, caused by nothing more dramatic than leaving the living room lights on.

The color of the light matters, too. Blue and blue-enriched white light is particularly potent at suppressing melatonin, because the system in your eyes that detects ambient brightness is most sensitive to short wavelengths. Swapping to warmer, blue-depleted lighting in the evening can reduce this suppressive effect. One study comparing standard fluorescent light to blue-depleted LED light at bedroom-level intensity found that the blue-depleted light produced less melatonin suppression and measurably lower alertness, as assessed by both reaction time tests and brainwave patterns.¹⁰ Sensitivity to light’s disruptive effect also varies from person to person, so some people are hit harder than others by bright screens at night.¹¹

The practical takeaway: dim your indoor lights in the hour or two before bed, switch screens to warm/night mode, and if you are lying awake, resist the urge to scroll on your phone. Even a brief blast of blue-white light from a screen can reset the melatonin clock you are trying to wind up.

Take a Warm Bath or Shower

This one has a surprisingly solid mechanism behind it. Sleep onset is tied to a drop in core body temperature. To make that drop happen, your body needs to push heat outward, from your core to your skin, through dilated blood vessels in your hands and feet. Research has found that the temperature difference between your skin and your core is actually a better predictor of how quickly you fall asleep than core temperature itself, heart rate, or even subjective sleepiness ratings.¹²

A warm bath or shower before bed accelerates this process. The warm water dilates blood vessels near the skin’s surface, and when you step out, your body rapidly sheds heat, mimicking and amplifying the natural temperature drop that precedes sleep. A systematic review and meta-analysis of this passive body heating approach confirmed that the mechanism works through increased blood flow to the hands and feet, which boosts heat dissipation from the core.¹³ A study of older adults specifically found that hot-water bathing before bed was associated with shorter time to fall asleep and a larger skin temperature gradient.¹⁴ Timing matters: about one to two hours before bed seems to be the sweet spot, giving your body time to cool after the initial warming.

Why Alcohol and Antihistamines Backfire

Two of the most common self-prescribed “sleep aids” tend to make things worse. Alcohol may help you fall asleep initially, but at higher doses it disrupts the second half of the night, fragmenting sleep during the hours when you would normally be getting the deepest rest.¹⁵ Even at low doses, the initial sedation gives way to lighter, more disrupted sleep as your body metabolizes the alcohol. Over time, relying on a nightcap trains your brain to associate alcohol with bedtime, creating a dependency that does not actually deliver better rest.

Over-the-counter antihistamines like diphenhydramine (the active ingredient in many sleep aids branded with “PM”) have a different problem. They do make you drowsy, but the quality of sleep they produce is poor. Research in mice found that chronic diphenhydramine use fragmented a key stage of deeper sleep, reduced the duration of sustained sleep bouts, and increased drowsiness during the active period, the equivalent of daytime grogginess in humans.¹⁶ You feel like you slept, but the architecture of that sleep is degraded. And because tolerance develops quickly, you end up taking more for the same effect, compounding the problem.

Melatonin and Other Supplements

Melatonin is the most widely used sleep supplement, and it can help, but most people take it wrong. A dose-response meta-analysis of randomized trials found that taking melatonin about three hours before your desired bedtime at around 4 mg was more effective for reducing time to fall asleep than the more typical approach of taking 2 mg just 30 minutes before bed.¹⁷ The earlier timing makes sense biologically, because melatonin is a signaling molecule rather than a sedative. It tells your brain that nighttime is approaching, not that sleep should happen right now. Taking it late gives your circadian system less time to respond.

Other popular supplements have a weaker evidence base. A review of dietary supplements for sleep quality found that while melatonin and magnesium have been studied extensively, results are conflicting, and other compounds like L-theanine, zinc, and vitamin D have less clinical support.¹⁸ L-theanine, an amino acid found in tea, has shown some promise in animal studies, where a magnesium-L-theanine complex decreased sleep latency and increased sleep duration in mice.¹⁹ But mouse results do not translate directly to humans, and the human data remains thin. If you are going to try supplements, melatonin with the right timing and dose is the best-supported option.

The Problem With Pink Noise

Sound machines and pink noise apps have become enormously popular, marketed as a way to smooth over disruptive background sounds and lull you to sleep. The evidence, though, is more complicated than the marketing suggests. While pink noise can partially reduce arousals caused by environmental noise like aircraft, earplugs outperform it.²⁰ In controlled lab conditions, adding pink noise to an already noisy environment actually worsened sleep structure rather than improving it, despite minor improvements in fragmentation, while earplugs mitigated nearly all of the noise’s effects up to fairly high levels.²¹

There is another wrinkle. Pink noise played continuously overnight may alter normal sleep architecture in ways that are not beneficial. One study found that pink noise reduced time spent in the lightest sleep stage right after falling asleep, and that change was linked to worse performance on insight and pattern-detection tasks the next day.²² If your bedroom is noisy, a pair of earplugs is likely a better first step than a sound machine. If you prefer sound, using it just during the falling-asleep period rather than all night may be more prudent.

When Occasional Sleeplessness Becomes a Pattern

A bad night here and there is normal. Where things get complicated is when occasional sleeplessness turns chronic, which researchers think involves a progression from initial triggers (a stressful event, jet lag, illness) to behaviors that perpetuate the problem after the trigger has passed. Models of insomnia suggest that these perpetuating behaviors, like spending extra time in bed or napping to compensate, can entrench the problem over time.²³ Interestingly, recent research has cast doubt on whether extending your sleep opportunity is really the main factor that flips the switch from acute to chronic insomnia, suggesting the picture is more complicated than the standard model implies.²⁴

If you have been struggling for more than a few weeks, the gold-standard treatment is cognitive behavioral therapy for insomnia, often abbreviated CBT-I. One of its core components, sleep restriction therapy, works by temporarily limiting the hours you spend in bed to roughly match the hours you actually sleep. This sounds miserable, and the first week usually is. But a randomized controlled trial designed to measure its mechanisms found that it works on two fronts: it increases sleep pressure (the homeostatic drive that makes you feel sleepy) and decreases the mental and physical arousal that keeps insomnia going, with these effects showing up within the first week or two of treatment.²⁵ A systematic review of the evidence found that most studies reported reduced time to fall asleep by the end of treatment.²⁶

Acceptance-based approaches have also shown promise. A pilot trial of acceptance and commitment therapy for insomnia found that rather than fighting wakefulness, learning to accept the physical sensations of being awake in bed reduced what researchers call “counterproductive sleep effort,” which helped promote sleep.²⁷ This connects back to the theme that runs through almost every effective insomnia treatment: stop fighting sleep and create the conditions for it to happen on its own.

When You Should See a Doctor

Not all trouble sleeping is straightforward insomnia. Sleep apnea, a condition where breathing repeatedly stops and starts during sleep, can masquerade as insomnia because it causes frequent awakenings and unrefreshing sleep. A study of patients presenting with insomnia or restless legs found that objective evidence of obstructive sleep apnea occurred at similar rates in both groups, even among people who did not report typical apnea symptoms like snoring.²⁸ If your sleeplessness comes with daytime fatigue that seems disproportionate, morning headaches, or a partner reporting that you snore or gasp, it is worth getting evaluated for a sleep disorder rather than assuming you just have insomnia.

Restless legs syndrome, thyroid disorders, chronic pain, and certain medications (including some antidepressants and decongestants) can all disrupt sleep in ways that behavioral strategies alone will not fix. The behavioral toolkit described above works best for the kind of sleeplessness driven by an overactive mind and poor sleep habits. If that does not describe your situation, or if you have tried these approaches consistently for a few weeks with no improvement, a conversation with a doctor is the right next step.

Waking Up in the Middle of the Night

Much of the advice about sleeplessness focuses on falling asleep at the beginning of the night, but a middle-of-the-night awakening is a distinct and common frustration. Interestingly, some historical evidence suggests that waking in the middle of the night may not be as abnormal as modern sleep culture implies. Historian Roger Ekirch documented widespread references to “first sleep” and “second sleep” in preindustrial European sources, suggesting that a period of wakefulness between two sleep segments was once considered normal. Some ethnographic evidence suggests this pattern also appeared in preindustrial equatorial cultures, though the extent is debated.²⁹

Whether or not segmented sleep was once the norm, the same principles apply when you wake at 3 a.m.: do not look at the clock, do not pick up your phone, and if you are not back to sleep within about 20 minutes, get up and do something quiet until you feel drowsy again. The temptation to calculate how many hours of sleep you have left, or to start worrying about tomorrow, is strongest during these middle-of-the-night episodes. Recognizing that a brief awakening is physiologically normal can itself reduce the anxiety that turns a brief waking moment into an hour of frustrated alertness.