Wide awake in a gorgeous lodge? Your brain is on night watch

The bush lodge is perfect. There’s a fire crackling, a cold drink in your hand and a bed made up like a cloud. You fall into it, exhausted, and then you lie there listening to every creak, tap and distant call.

If that sounds familiar, you’re not a bad sleeper and you haven’t picked the wrong hotel. You’re experiencing one of sleep science’s best-documented quirks, and once you understand it, you can plan around it.

Your brain posts a sentry on night one

Sleep researchers call it the first-night effect. In a Brown University study, a network in the left hemisphere stayed more active than the right during deep, slow-wave sleep on the first night in the lab. On the second night, that difference was gone.

The researchers described it as a kind of night watch. People whose left hemisphere was more “awake” took longer to fall asleep on night one. Tones played to the right ear, which feeds the left hemisphere, were also more likely to wake sleepers.

The likely reason is evolutionary. Lighter sleep somewhere new may help us detect threats faster. Your ancestors didn’t have a four-star lodge with a lock on the door, and your brain hasn’t quite caught up.

Why the road and the trail make it worse

The first-night effect rarely arrives alone. Travel days come with early starts, long drives, a late braai, a glass of wine and a strange mattress. Each one nudges your sleep a little further off course.

Caffeine is a sneaky one. Its effects can last up to 8 hours. That means the roadside flat white at 3pm is still in your system at bedtime.

Alcohol is the other trap. A sundowner feels like a sleeping pill, but as alcohol leaves your system it has an alerting effect that causes wake-ups in the second half of the night. MD Anderson Cancer Center suggests skipping alcohol four to six hours before bed. You may not want to hear that on holiday, so see it as a trade: one fewer sundowner, one better night.

Poor nights add up, too. If you want the full picture of how sleep deprivation damages your brain, it’s worth a read before you plan a week of 4am starts.

Sleeping high? Thin air has its own plans

If night one is in the Drakensberg, the Lesotho highlands or any high camp, there’s a second culprit. Sleep at altitude brings more awakenings and more light sleep, with less deep and REM sleep. The main cause is low oxygen pressure combined with periodic breathing, where your breathing rises and falls in waves and sometimes ends in a gasp that jolts you awake.

The good news is that it eases. The breathing pattern improves somewhat over a week or more of acclimatisation. That’s another reason to build a gentle ramp-up into any high-altitude trip instead of driving up and sleeping on the highest night.

Your night-one sleep kit

You can’t switch the night watch off, but you can give your brain fewer reasons to stay on duty. Stanford’s sleep specialist Dr Cheri Mah says that bringing familiar items, like a lavender-spritzed pillow or a photo, can help you feel more relaxed and safer. Screenshot this list before you pack:

• Eye mask and earplugs. They block the unexpected: dawn light, the generator, the neighbour’s snoring.
• Your own pillowcase. Familiar smell, familiar signal that it’s safe to sleep.
• A white-noise playlist. Download it before you leave, because signal in the Karoo is a gamble.
• A small headlamp. You’ll find the loo without switching on every light in the room.
• A water bottle. Dry air and long drives dehydrate you.
• A wind-down habit. Do the same few minutes of stretching, reading or tea you do at home.

Catch the morning, and give yourself a break

Light is your best free tool. The CDC’s occupational health arm suggests spending 30 minutes or so outside in daylight, with the first hours of the day being particularly helpful. Even a cloudy day beats dim indoor light.

On a road trip, that means taking your coffee to the stoep instead of drinking it in the car. On the trail, it means walking in the early light. Exercise helps too; there’s good science on what exercise does to your brain and your sleep.

Then do the kindest thing of all: lower your expectations for night one. A rough night in a new place doesn’t mean something is wrong with you, and you might need a night or two to settle in. Plan your biggest drive or toughest hike for day two, not the morning after arrival.

Flying in from far away?

Crossing several time zones adds jet lag on top. The NHS notes that jet lag often improves after a few days as your body clock adjusts. Victoria’s Better Health Channel puts the rule of thumb at about one day per hour of time-zone change. The NHS also says melatonin tablets aren’t recommended for jet lag because there isn’t enough evidence that they work.

When it’s more than a bad night

A restless first night is normal. If poor sleep drags on for weeks, or you wake up gasping or are told you snore loudly and stop breathing, mention it to your doctor or pharmacist when you’re home.

At altitude, poor sleep plus a headache, nausea and unusual tiredness can be an early sign of acute mountain sickness. Don’t climb higher. Rest, and if you feel worse, descend and get medical help.

The best campsite in the country isn’t the one with the best view. It’s the second night, when your brain finally decides it’s safe to switch off the night watch and enjoy the view with you.

By HealthLab

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