{"id":214215,"date":"2025-05-13T19:42:39","date_gmt":"2025-05-13T19:42:39","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=214215"},"modified":"2025-05-13T19:42:41","modified_gmt":"2025-05-13T19:42:41","slug":"which-of-the-following-is-true-of-a-nights-sleep","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/13\/which-of-the-following-is-true-of-a-nights-sleep\/","title":{"rendered":"Which of the following is true of a night’s sleep"},"content":{"rendered":"\n

Which of the following is true of a night’s sleep?<\/p>\n\n\n\n

Multiple Choice<\/p>\n\n\n\n

REM sleep decreases as the night progresses.
Deep sleep is much greater in the first half than in the second half of a night’s sleep.
Individuals normally spend about 20 percent of sleep in light sleep.
Most REM sleep takes place during stage N1 of a night’s sleep.<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/strong><\/p>\n\n\n\n

Correct Answer:<\/strong>
Deep sleep is much greater in the first half than in the second half of a night’s sleep.<\/strong><\/p>\n\n\n\n

\n\n\n\n

Explanation:<\/strong><\/h3>\n\n\n\n

A typical night\u2019s sleep follows a predictable structure consisting of multiple sleep cycles<\/strong>, each lasting approximately 90 minutes<\/strong>. These cycles are divided into non-REM (NREM)<\/strong> sleep and REM (rapid eye movement)<\/strong> sleep stages. NREM sleep itself includes three stages: N1 (lightest sleep), N2 (slightly deeper), and N3 (deep or slow-wave sleep)<\/strong>.<\/p>\n\n\n\n

The correct statement \u2014 \u201cDeep sleep is much greater in the first half than in the second half of a night’s sleep<\/strong>\u201d \u2014 accurately describes the natural architecture of sleep. In the first half of the night<\/strong>, the body experiences longer periods of N3 (deep sleep)<\/strong>. Deep sleep is essential for physical restoration<\/strong>, immune system support<\/strong>, and memory consolidation<\/strong>. As the night progresses, the amount of N3 sleep declines<\/strong>, and the body shifts toward longer periods of REM sleep<\/strong>.<\/p>\n\n\n\n

In contrast, REM sleep<\/strong>, associated with vivid dreaming<\/strong>, emotional processing<\/strong>, and brain development<\/strong>, increases in duration in the second half of the night<\/strong>. The first REM period may only last a few minutes, but by early morning, REM phases can last up to 30 minutes or more<\/strong>.<\/p>\n\n\n\n

Let\u2019s evaluate the other options:<\/p>\n\n\n\n

    \n
  • \u201cREM sleep decreases as the night progresses\u201d<\/strong> \u2014 False.<\/em> REM sleep actually increases throughout the night, not decreases.<\/li>\n\n\n\n
  • \u201cIndividuals normally spend about 20 percent of sleep in light sleep\u201d<\/strong> \u2014 False.<\/em> Light sleep (mainly N1 and N2) accounts for roughly 50\u201360%<\/strong> of total sleep time, not just 20%.<\/li>\n\n\n\n
  • \u201cMost REM sleep takes place during stage N1 of a night\u2019s sleep\u201d<\/strong> \u2014 False.<\/em> REM sleep is a separate stage entirely, distinct from N1. It is not part of the NREM sleep stages<\/strong>.<\/li>\n<\/ul>\n\n\n\n

    In summary, deep sleep (N3) dominates early in the night, while REM sleep becomes more frequent and longer in the latter half. This natural balance ensures both physical and mental rejuvenation.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Which of the following is true of a night’s sleep? Multiple Choice REM sleep decreases as the night progresses.Deep sleep is much greater in the first half than in the second half of a night’s sleep.Individuals normally spend about 20 percent of sleep in light sleep.Most REM sleep takes place during stage N1 of a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-214215","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/214215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=214215"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/214215\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=214215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=214215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=214215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}