3
votes
1answer
191 views

Getting up by alos hashachar — Halachically required?

That which the Machaber writes in the first siman of Shulchan Aruch: יתגבר כארי לעמוד בבוקר לעבודת בוראו, שיהא הוא מעורר השחר From here could one say that if one doesn't get up by alos hashachar ...
6
votes
1answer
424 views

Davening after the zman

Can someone please explain the halachot for someone who wakes up after zman kriat shema? After zman tfillah?
9
votes
2answers
331 views

Polyphasic Sleep and Halacha

I recently read an article on polyphasic sleep and I'm quite interested in experimenting with it. The article advises the Uberman approach which advocates 20-30 minute naps every four hours, meaning ...