Sleeping pills can help you sleep at your destination, but they do not reliably reset your body clock or eliminate jet lag. Last reviewed:
They are usually reserved for short-term, severe insomnia and should be used with medical guidance. The FDA advises having 7 to 8 hours available for sleep after taking bedtime insomnia medicine. For most travelers, timed daylight, a destination-based sleep schedule and short or no daytime naps are safer starting points.
| Option | What it may help with | Main limitation or risk |
|---|---|---|
| Prescription sleeping pills | Falling asleep or staying asleep at local bedtime | Next-day impairment, dependence, complex sleep behaviors and drug interactions |
| Melatonin | Sleep timing and some jet-lag symptoms | Timing matters; product strength can vary; recommendations differ |
| Daylight and sleep scheduling | Adjusting the circadian body clock | Requires planning and several days of consistency |
| OTC antihistamines | Sedation | Can worsen cognitive impairment and increase fall risk |
What Sleeping Pills Do for Jet Lag
Jet lag happens when your internal circadian clock is out of sync with the local day-night cycle. Prescription hypnotics such as zolpidem, eszopiclone and zaleplon can promote sleep, but their main effect is sedation. They do not reliably shift the circadian clock, and evidence that they improve broader daytime jet-lag symptoms is limited.
A sleeping pill may make one night easier without helping your body adjust faster. You could still feel tired, unfocused or out of sync the next day.
When a Prescription Sleeping Pill May Be Reasonable
A doctor may consider a short course for an adult traveler with severe, temporary insomnia after crossing multiple time zones, especially when adjusting to the local bedtime is important.
If a doctor prescribes one:
- Take it only when you have a full night available for sleep.
- Do not combine it with alcohol, opioids, sedatives or another sleep medicine.
- Do not drive or perform safety-sensitive activities if you feel drowsy or impaired the next morning.
- Do not take it for several nights without discussing the plan with a healthcare professional.
- Check travel rules before carrying medicines such as zolpidem internationally. Some countries restrict or prohibit them.
The FDA warns that prescription "Z-drugs," including zolpidem, eszopiclone and zaleplon, can rarely cause complex sleep behaviors. These include sleepwalking, sleep-driving and preparing food while not fully awake. Such events can occur even after the first dose.
Are Sleeping Pills Safe to Take on a Flight?
They can be risky if the flight is shorter than the medicine's duration or if you need to be alert soon after landing. The CDC advises caution when the expected sleep period is shorter than the drug's duration and recommends avoiding sedative medicines with long half-lives.
A sedative can also make it harder to respond quickly in an emergency, move around the cabin or judge how impaired you are. Do not mix a sleeping pill with alcohol.
Is Melatonin Better Than Sleeping Pills for Jet Lag?
Melatonin may be more relevant to jet lag because it can affect sleep timing as well as sleepiness, but it is not a universal solution.
Research reviewed by the U.S. National Center for Complementary and Integrative Health found that melatonin may reduce jet-lag symptoms after eastward and westward travel, although some of the evidence is low quality.
Timing matters. Taking melatonin at the wrong time, especially early in the day, can cause sleepiness and may delay adjustment. The CDC describes timed melatonin as one part of a jet-lag plan that also includes light exposure and scheduled sleep.
Recommendations differ. The NHS says that medicines are not usually needed for jet lag and does not recommend melatonin tablets because it considers the evidence insufficient. U.S. travel and sleep guidance recognizes a possible benefit when melatonin is timed correctly.
Ask a clinician or pharmacist before using melatonin if you take warfarin, have epilepsy, are pregnant, have a chronic medical condition or take other medicines. Supplement strength can also vary between products.
What Works Better Than Sleeping Pills for Most Travelers?
Most travelers do better with measures that target the body clock directly:
- Follow the destination time zone quickly. Eat, sleep and seek light according to local time.
- Get natural daylight after arrival. The best timing depends on whether you traveled east or west.
- Avoid long daytime naps. If you need one, keep it short so it does not interfere with nighttime sleep.
- Limit alcohol and excessive caffeine. Both can worsen sleep disruption.
- Adjust your sleep schedule before departure when practical.
- Use an eye mask and earplugs when a bright or noisy cabin is the main problem.
Over-the-counter antihistamines such as diphenhydramine are not automatically safer. The CDC advises avoiding antihistamines for jet lag because they can worsen cognitive impairment, increase fall risk and impair physical performance.
Bottom Line
If you are deciding what to try first, use local time, timed daylight and a short nap only when necessary. A prescription sleeping pill is a clinician-guided option for severe, temporary insomnia. It is not a way to reset the body clock.