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スマートアラームと楽な朝

Smart Alarms and Easy Mornings

朝、アラームが急に体を押すように感じることがあります。この重い感じは「睡眠慣性」と呼ばれます。スマートアラームはより楽な起床時間を選ぼうとします。
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↓日本語訳が表示されます↓

Some mornings, an alarm feels like a sudden push. You open your eyes, but your mind is still slow. This heavy feeling is called sleep inertia. It can be stronger after waking from deep sleep. (pmc.ncbi.nlm.nih.gov)

A smart alarm tries to choose an easier waking time. You set a short time range before your final alarm. During sleep, an app or watch checks body signals. It may use movement, sound, or heart rate. Then it guesses when your sleep is light. Light sleep means you may wake more easily. The alarm rings inside your chosen time range. (sleepcycle.com)

However, these devices do not read sleep perfectly. Studies show different results across devices and people. So, a smart alarm cannot promise an easy morning. (pubmed.ncbi.nlm.nih.gov)

For example, Ken must leave home early for school. He sets a short waking range on his watch. At first, he is sleeping deeply, so the alarm waits. Later, the watch guesses that his sleep is lighter. It plays a soft sound, and Ken wakes up. He may feel better, but this is not certain. Smart alarms can help, but enough sleep is still important.

by EigoBoxAI
作成:2026/11/03 07:00
レベル:初中級 (語彙目安:1000〜2000語)
タイプ:リーディング

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