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The Independent ·Smart escape

Why Part of Your Brain Stays Awake When You Sleep in an Unfamiliar Bed

by Albert Stumm

Published 2026-08-11 06:28:33+00:00

When you finally drift off in a new place, what is your brain still listening for?

0:00 / 5:56 · Narrator Rasalgethi

Context

Staring at the ceiling of a strange hotel room at two in the morning usually feels like a failure to relax. But the biology behind that restless first night away from home goes back thousands of years. According to this 11 August 2026 story from The Independent, the human brain treats a new environment like a dangerous wilderness by keeping part of itself awake to stand guard. The challenge becomes figuring out how to convince a stubborn nervous system that a modern bedroom is completely safe.

Show notes

An explanation of the "first-night effect," an evolutionary response that causes people to sleep poorly in new places. Sleep researchers detail how part of the human brain remains alert to potential threats during the first night away from home, preventing deep rest. Beyond the biology of this alertness, psychologists offer practical steps travelers can take to calm their minds and sleep better on the road.

Read on The Independent →