American research from 2016 demonstrates that only half of our brain sleeps in a new place. This is the so-called “First Night Effect”. The assumption is that this is a survival strategy. Since you never know what can happen in a new environment, your brain can respond more quickly to dangerous situations if half of it remains awake. Our body is programmed to do this; isn’t that amazing? Dolphins always do this. They can sleep with just one half of their brains at a time.
Of course, we all go on holiday to relax. But going on holiday can also be a source of tension and even stress. Extending your passport beforehand, taking your cat to the kennel, arranging for someone to water your house plants, the actual journey, queues on the motorway and the long lines at customs. Stress and sleep just don’t go very well together. Along with irregular sleep, these are some of the most important reasons why we don’t sleep that well when we’re on holiday.
To ensure you’ll sleep soundly while on holiday, we have a few simple, useful tips: