Time and Duration of Sleep: Difference between revisions

# One shouldn't sleep more than 8 hours of sleep nor should one sleep less than 6 hours all according to one's needs. <ref> Some sources suggest that one should sleep 8 hours such as the Rambam (Deot 4:4) and Orchot Rabbeinu (1 pg 189, biography of the Steipler). Some quote Mishna Brurah 1:9 to say that one should sleep as much as one needs, however, if you read the whole sentence, you'll see that the Mishna Brurah is saying that about someone who is weak and is afraid that if he doesn't get enough sleep he will fall asleep during davening. Yalkut Yosef (edition 5764, vol 1 pg 64) writes that it's unhealthy to sleep more than 8 or less than 6 hours. Aruch HaShulchan says that some learn from the pasuk "Yashanti Az Yanuach Li" that one should sleep 8 because the gematria of Az is 8 and some say since the gematria (mispar katan) of Li is 4 one should sleep 4 hours, but concludes that it all depends on the health and age of the person. </ref>