Can't Sleep in a New Place? First-Night Effect Explained

The bed looks comfortable. The room is quiet enough. You are tired after traveling or moving boxes all day. Yet once the lights go out, you notice every unfamiliar sound and struggle to drift off.

If you can’t sleep in a new place, one possible explanation is the first-night effect: a pattern of less settled sleep when the sleeping situation is unfamiliar. Changes in noise, temperature, routine, and bedtime worry can also contribute.

A difficult first night does not mean every night will feel the same. Making the space comfortable and keeping a few familiar habits may help you settle in without putting extra pressure on sleep.

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What Is the First-Night Effect?

The first-night effect is a pattern observed in sleep research in which people sleep differently during their first recording night compared with later nights.

Researchers have found changes such as:

Taking longer to fall asleep.
Spending more time awake after initially falling asleep.
Sleeping less overall.
Having changes in the timing or amount of REM sleep.

A 2022 meta-analysis of 53 studies found several of these differences between the first and second nights of sleep recording in healthy participants.

This helps explain why sleep away from home can feel unusually unsettled. However, research recordings often involve unfamiliar equipment as well as a different setting. The findings do not identify the cause of every difficult hotel night.

Does Half Your Brain Really Stay Awake?

You may have heard that one half of your brain stays awake to watch over an unfamiliar room. That description oversimplifies the research.

In a 2016 laboratory study, researchers found regional differences in sleep depth between the brain’s hemispheres during the first session. The side showing lighter sleep also responded more strongly to unusual sounds.

However, a 2024 study did not find the same relationship between hemispheric differences and the first-night effect. It also found first-session sleep disturbances during recordings at home.

The mechanism remains under investigation. These findings do not mean that an entire half of your brain remains awake, or that your room is unsafe.

Other Reasons You May Struggle to Sleep Somewhere New

Unfamiliarity may be only part of the picture. Consider what else has changed:

The room: A different mattress, warmer bedding, hallway light, or unfamiliar background noise.
Your schedule: An early departure, late arrival, unusual bedtime, or long afternoon nap.
Your habits: More caffeine, alcohol, or a large meal later than usual.
Your thoughts: Excitement about the trip, moving stress, or worry about tomorrow.

If you have crossed time zones, your body clock may also be adjusting. Our guide to jet lag and sleep explains why that timing mismatch needs a different approach.

You can also feel comfortable with your surroundings and still sleep poorly. Being happy about a vacation or move does not guarantee an easy first night.

Make a Few Parts of Bedtime Familiar

Try bringing a small version of your usual evening routine with you. Familiarity does not require recreating your entire bedroom.

You might use the same sequence you follow at home: wash up, change into comfortable sleepwear, read a few pages, and lower the lights.

A familiar book, pillowcase, or quiet audio track may make the setting feel more comfortable. Think of these as personal comfort cues rather than treatments proven to prevent the first-night effect.

If your usual routine is complicated, simplify it for the stay. Our gentle bedtime routine guide offers a manageable starting point.

The aim is to create a comfortable transition into rest. You do not need to complete every step perfectly.

Address the Distraction You Actually Notice

Before buying anything, check what the room already provides. Adjusting the curtains, thermostat, or bedding may be enough to improve comfort.

If Unwanted Light Is the Problem

Close the curtains and reduce unnecessary lighting before bed. Position yourself so bright hallway light or a glowing display is less noticeable, where practical.

If the room remains brighter than you prefer, some people find an eye mask useful. Choose one that feels comfortable without pressing tightly against your eyes or head.

Try it before the trip if possible. A mask that feels distracting may add another unfamiliar sensation when you are already trying to settle.

If Background Noise Keeps Drawing Your Attention

Notice whether the noise is something you can reasonably change. At a hotel, asking about a quieter room may help. In a guest room, a brief conversation about household schedules can make the night easier to plan.

For background sounds you cannot control, earplugs for sleep may be worth trying if they feel comfortable. Follow their instructions and consider whether you can still respond to important alarms or announcements.

Eye masks and earplugs can reduce environmental distractions. They have not been established as a cure for the first-night effect.

If the Bed Feels Too Warm or Uncomfortable

Adjust the bedding before settling in. You might remove an extra layer, change the room temperature, or try another pillow already available.

Start with the discomfort you can identify. There is little value in repeatedly rearranging an otherwise comfortable bed while waiting for the perfect setup.

Keep Bedtime Close to Your Usual Pattern

If you have not crossed time zones, keeping sleep and wake times reasonably close to your usual schedule can reduce another source of disruption.

Going to bed several hours early because you are worried about sleeping may leave you awake before you are sleepy. Aim for a familiar bedtime window while paying attention to how you feel.

Give yourself enough opportunity to sleep, and keep caffeine earlier in the day if it tends to affect you. Alcohol can make you drowsy initially but lead to more disrupted sleep later.

When time-zone travel is involved, plan around the destination and your body clock rather than assuming your home schedule will fit.

Ease the Pressure to Sleep Immediately

A new room can make sleep feel unusually important. You may have a meeting tomorrow, want energy for sightseeing, or worry about disturbing your hosts.

That concern can turn into repeated checking: “Am I sleepy yet?” “How many hours are left?” “Why am I still awake?”

Set your alarm once, then put the clock or phone where you are less likely to keep checking it. Choose a quiet activity you enjoy without using it as a test of whether sleep is working.

A useful reminder might be: “This is an unfamiliar night. I can give myself time to settle.”

If bedtime has become a performance test, our guide to why trying too hard to sleep can keep you awake explores that pattern.

What to Do If You Are Still Wide Awake

If you are lying comfortably and becoming drowsy, give yourself room to drift off. There is no need to keep checking whether sleep has started.

If you are clearly awake and increasingly frustrated, consider taking a brief break from bed. Sit somewhere comfortable in dim light and read something quiet or do another low-key activity. Return to bed when you feel sleepy.

You do not need to leave the room or time the break precisely. In a small hotel room, a nearby chair may be sufficient.

This approach comes from stimulus control, which aims to strengthen the association between bed and sleep. Our guide to getting out of bed when you cannot sleep explains it gently.

Try to avoid turning the break into work, bright-screen browsing, or planning the entire following day.

Different Places May Need Different Adjustments

Setting	A practical starting point
Hotel room	Check curtains, temperature, and noticeable noise before bedtime. Ask about a room change if a specific disturbance is significant.
Guest room	Ask about household routines ahead of time, then set out your usual bedtime essentials.
New home	Prioritize a usable sleeping space, comfortable bedding, and accessible lighting. Let nonessential unpacking wait.

In a new home, you may be adjusting to more than a bedroom. Moving can change your daily routine and leave practical tasks unfinished. Give yourself permission to establish the basics gradually.

How Long Does the First-Night Effect Last?

Sleep research often finds the clearest differences between the first and second recording nights. That does not create a deadline for your own adjustment.

Studies of sleep recordings cannot tell you exactly how many nights you will need to feel comfortable in a hotel or new home. Ongoing noise, stress, or schedule changes may continue affecting sleep after the first night.

Notice the overall pattern rather than evaluating every night. Are you spending less time worrying about the room? Is a particular distraction easier to manage? Are sleep and daytime functioning gradually improving?

After a Difficult Night, Keep the Day Manageable

A poor first night can be disappointing, especially when you have plans. Try to keep a reasonably familiar wake time and leave room for a gentler morning where possible.

If you need a nap, a short one earlier in the afternoon is less likely to interfere with bedtime than a long late-day sleep.

Adjust demanding activities if you are unusually sleepy, and avoid driving when you cannot stay alert safely.

Our guide to resetting after a bad night of sleep offers additional ways to approach the day without making the next night feel like a test.

When Is It Worth Getting Help?

One unsettled night in an unfamiliar room does not by itself establish chronic insomnia. However, repeated sleep difficulty deserves attention if it affects your daytime functioning or makes overnight stays increasingly stressful.

Consider speaking with a healthcare professional if:

Sleep problems continue despite addressing obvious environmental issues.
You regularly have difficulty sleeping at home as well.
Worry about sleep leads you to avoid trips or overnight visits.
Daytime sleepiness interferes with work, concentration, or safety.

For ongoing insomnia, cognitive behavioral therapy for insomnia, or CBT-I, is commonly recommended as an initial treatment. It addresses thoughts and habits that can keep sleep difficult.

You can seek support before the problem becomes long-standing.

Give Yourself Time to Settle

If you can’t sleep in a new place, begin with a few manageable steps: make the room comfortable, keep familiar bedtime habits, and reduce the pressure to fall asleep immediately.

An unfamiliar night may feel unsettled without predicting the rest of your stay. You can support your sleep while allowing the adjustment to happen at its own pace.

This article provides general information for adults and does not replace personalized medical advice.

Why Can’t I Sleep in a New Place? The First-Night Effect and What May Help