You are here

Home
sleep

sleep

Nodding off is dangerous. Some animals have evolved extreme ways to sleep in precarious environments

Nodding off is dangerous. Some animals have evolved extreme ways to sleep in precarious environments

While flying, frigatebirds can sleep with one half of the brain at a time. The other half remains semialert so that one eye is still watching for obstacles in their flight path
Dolphins can sleep with one half of the brain at a time while swimming. Some other birds, including swifts and albatrosses, can sleep in flight
Elephant seals sleep during the deepest portions of their dives, when they were below the depths that predators usually patrol

By AP · 21 December 2025

Special

Why so many people in the Middle East are suffering from sleep deprivation and disorders

Why so many people in the Middle East are suffering from sleep deprivation and disorders

By Jumana Khamis · 16 March 2023

Too little sleep in middle age linked to raised dementia risk

Too little sleep in middle age linked to raised dementia risk

By AFP · 21 April 2021

Special

Tired of feeling tired? Sleep deprivation exacts health toll in Saudi Arabia

Tired of feeling tired? Sleep deprivation exacts health toll in Saudi Arabia

By Amna Khaishgi · 17 March 2019

Sleep talk is mostly rude and negative, research has revealed

Sleep talk is mostly rude and negative, research has revealed

By Arab News · 24 January 2018

Is it time you washed your pillow covers? It probably is says expert

Is it time you washed your pillow covers? It probably is says expert

By Arab News · 11 July 2017

Print Edition

Read pdf version Subscribe now

© 2026 SAUDI RESEARCH & PUBLISHING COMPANY, All Rights Reserved And subject to Terms of Use Agreement.