How to Sleep Well on Holiday: A UK Guide

Most people sleep badly on the first night in a hotel or holiday let, and that's a normal brain response, not a sign that something's wrong with you. Brain scans show that when you sleep somewhere new, one half of your brain stays more alert, like a night watch, ready to wake you if anything unfamiliar happens.

The practical upshot is simple: the first night is always the worst, the second is usually much better, and you can make both of them better still by packing a small sleep kit, fixing the room before you get into bed, and keeping your usual wind-down routine.

This guide covers the science, the kit, and the exact steps that get you rested on holiday instead of exhausted.

Why Your First Night Away Is Always the Worst

The "first-night effect" is one of the best-documented quirks of sleep science. In a 2016 study at Brown University, researchers scanned people sleeping in a lab for the first time and found that one hemisphere of the brain stayed more vigilant through the night, producing shallower slow-wave sleep while the other side slept normally. The brain was running a night watch, ready to respond to anything unexpected in an unfamiliar environment (PubMed: night watch in one brain hemisphere during sleep).

A 2024 follow-up added an important detail: the effect isn't limited to the very first night. It can reappear on non-consecutive nights, and it shows up even when the environment is familiar, which helps explain why one bad night in a holiday let can be followed by a fine one, and then another rough one a few nights later (PMC: the first-night effect over nonconsecutive nights).

So if you lie awake at 2am in a Spanish apartment or a Cornish cottage listening to the fridge, you're not broken. Your brain is doing its evolutionary job. The fix isn't to fight it, it's to give that vigilant hemisphere less to monitor: fewer unfamiliar noises, no light surprises, and a pillow that isn't a stranger to your neck.

Pack a Sleep Kit (It Weighs Almost Nothing)

Hotels and holiday lets reliably get three things wrong: light that leaks in, noise you can't control, and pillows with the loft of a pancake. All three have cheap, packable fixes. You don't need every item here, but each one solves a specific holiday sleep problem.

A silk sleep mask is the single highest-value item in any travel bag. The OLESILK Sleep Mask is 19-momme mulberry silk, which stays cool against your skin and doesn't drag or crease overnight, and its wide strap blocks the light that seeps around the edges of flimsy hotel curtains. If you prefer a softer or cheaper option, the Alaska Bear Silk Sleep Mask is the budget favourite, and our best sleep masks guide has the full comparison.

Earplugs handle the neighbour's TV, the 6am bins, and the family in the corridor. The Loop Quiet 2 earplugs use a reusable silicone design with around 24dB of noise reduction, and the low-profile shape means they don't hurt when you sleep on your side. For foam, silicone and wax options at every price, see our best earplugs for sleeping guide.

If you're fussy about pillows, take your own. The trtl Travel Pillow is the one regular travellers rave about: instead of a U-shape, it wraps around your neck like a scarf, with internal support that keeps your head from flopping forward on planes and trains. It doubles as a reading pillow in the hotel room, and it's the pick that comes up most in our travel pillow roundup.

A small white noise machine masks the sounds you can't block, from air-conditioning hum to a busy road. The Momcozy Portable Sound Machine is smaller than a phone, runs on USB or battery, and has a loop function for white noise, rain and lullabies, so it's genuinely travel-sized.

If you like listening to audio as you drift off, flat sleep headphones are worth a slot. The Soundcore Sleep A30 are ultra-thin earbuds that sit flush in your ear, so side sleepers don't get a plastic lump digging in, and they play white noise, podcasts or music from a built-in library.

Fix the Room Before You Get in Bed

Light is the strongest signal your body clock uses, so the first job is making the room as dark as possible. Check the curtains before you unpack: hotel curtains often leave a gap down the middle or a strip of light under the bottom. Pegs or clips close the gap, and a mask covers the rest. If the room faces street lights or a neon sign, ask reception for a quieter, darker room before you settle in, not at 1am.

Temperature is the second big lever. Most people sleep best in a bedroom around 16-18°C, and holiday rooms are usually warmer than that in summer or colder in winter, because the heating or air conditioning is set for nobody in particular. Adjust it as soon as you arrive, since the room takes an hour or two to respond, and our guide to the ideal room temperature for sleep explains the numbers.

Then think about what you'll hear at 3am. Is there a road, a lift, or a bar below? If the noise is unavoidable, earplugs and white noise are your friends. This is also the moment to ask for a room on a higher floor or away from the street, before the hotel fills up for the night.

Finally, make the bed feel like yours. Use the second pillow under your knees if you sleep on your back, or between them if you're a side sleeper. Check the duvet tog and add or remove a layer. Unpack properly rather than living out of a suitcase. Small familiarity beats big effort here, and it's the same principle as our bedroom setup guide, just scaled down to a hotel room.

Crossing Time Zones Without Wrecking Your Week

Jet lag deserves its own plan because no amount of pillows fixes a body clock that's stuck on home time. The NHS advice is straightforward: get plenty of rest before you travel, start going to bed and getting up closer to destination time in the days before you fly, and spend time outdoors in daylight once you arrive (NHS: jet lag).

Light is the master signal for your circadian rhythm. When you land, get bright morning light at the destination time to help your body clock shift, and keep naps short, under 30 minutes, so they don't steal sleep pressure from the night ahead. Heavy meals and caffeine in the hours before the local bedtime will both fight you, so keep them away from the evening.

Melatonin is the one supplement with genuine evidence for jet lag, but it's prescription-only in the UK. The NHS notes it's most useful when you're crossing several time zones in an easterly direction, so if you want to try it, ask a pharmacist or your GP about timing and dose rather than guessing from a bottle bought abroad (NHS: common questions about melatonin).

Our full jet lag guide goes deeper on light timing, naps and caffeine strategy, so if you're flying long-haul this summer, read that before you pack.

Four Holiday Sleep Mistakes to Avoid

The biggest one is treating every morning as a lie-in. Sleeping until 11am every day of the holiday pushes your body clock later, so by day three you can't fall asleep until gone midnight and you wake up groggy. Keep your wake time within an hour of usual and you'll hold onto the sleep you came for. Our circadian rhythm explainer covers why that morning anchor matters so much.

The second is the holiday default of a bottle of wine with dinner. Alcohol helps you fall asleep but fragments the second half of the night, so you wake at 3am feeling worse than if you'd skipped it. One or two drinks earlier in the evening is fine, just not a nightcap.

The third is caffeine timing, and it's the sneakiest one. A late-afternoon espresso to power through the sightseeing will still be in your system at bedtime, because caffeine's half-life is around five hours. Cut off caffeine by early afternoon if you want to feel sleepy at the local bedtime.

The fourth is going from a full day straight into bed with your phone. Give yourself the same wind-down you'd have at home, even on holiday: dim the lights, read or listen to something boring, and give your brain twenty minutes to shift down. Our guide to falling asleep fast has the full routine.

Frequently Asked Questions

The Bottom Line

Sleeping well on holiday comes down to four moves: expect a rough first night and don't panic about it, pack the small kit that fixes light, noise and pillows, set the room up before you get into bed, and keep your wake time and wind-down roughly intact. If you're crossing time zones, add the jet lag plan and you're set.

The NHS's core sleep advice applies just as much in a hotel as at home: steady routines, a cool dark room, and caffeine and alcohol kept away from bedtime (NHS: sleep and tiredness). Do that, and the restful holiday sleep you came for is very achievable.

For more sleep guides, visit SleepReview