Questions with the keyword 'sleep'

• What are the main causes of insomnia,and is there permamant treatment available? by jfowler7 to Bob, Katie, Nisha, Sallie Comments: (No comments so far )
• why do some people sleep walk? by scientistlads to Bob, Katie, Nisha, Sallie, Vee Comments: (No comments so far )
• Some ocean animals have to breathe like every 5 minutes but do they ever sleep by kaushil123 to Bob, Katie, Nisha, Sallie, Vee Comments: (No comments so far )