For questions pertaining about sleep, like what happens when you sleep, when are you allowed to sleep, and waking up after sleep.

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3
votes
1answer
433 views

What level of obligation is of kriat shema al hamita?

What is the level of obligation for krias shema al hamita (the recitation of Shema before going to bed)? Is it a mitzvah deoraisa, mitzvah derabanan, is it a minhag avoseinu byadeinu? Maybe it's ...
6
votes
1answer
109 views

How did Achashverosh not think that Mordechai would be disturbed by the decree to kill all the Jews?

In the book of Ester (6:1), Achashverosh can't sleep and asks to bring the book of records to him. Rashi says that the reason why is in case he was done a favor by someone and didn't repay it and that ...
4
votes
0answers
100 views

What happens to the soul when dozing for a minute or ten?

Tradition tells us the soul leaves the body when sleeping. Is the same true when drowsing in a chair, which is usually not a deep sleep and you are still aware of background noise?
7
votes
1answer
234 views

Is it necessary to wear kippa to bed or when not moving?

I have noticed mention made of a prohibition of sitting in the house bareheaded when at rest and of the necessity of wearing a head covering at night. Is there a halachic law deeming it necessary to ...
4
votes
1answer
218 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 ...
2
votes
1answer
230 views

Can I say the prayers of Birkot HaShachar and Tikkun Chatzot after Chatzot (Midnight), even if I don't sleep yet?

Can I say the prayers of Birkot HaShachar and Tikkun Chatzot after Chatzot (Midnight), even if I had not gone to sleep yet? How should I proceed with the Kriat Shema Al Hamitá if I will remain awake ...
4
votes
1answer
161 views

Onah and Sukkos?

Does the Mitzvah of sleeping in the Sukkah supersede the mitzvah of Onah? (one would think not, as it is a chov to someone else.) If not, is one supposed to fulfill mitzvas Onah and then retire to the ...
1
vote
2answers
123 views

How cold is too cold?

Rema writes in his commentary to the Tur (OC 639): והמרדכי בפרק הישן (סי' תשמא) כתב אבל העולם סמכו על דבר זה שיראים מן הצינה והוה כחולה שאין בו סכנה או כמצטער דפטורים מן הסוכה עכ"ל (עיין ב"י סימן ...
6
votes
1answer
247 views

Inflatable Mattress on Shabbos

Is one allowed to pump air into an inflatable mattress on Shabbos? Is this a problem of tikkun cli, makeh b'patish, etc? (Or any other problem.) What about if the mattress was inflated Erev Shabbos ...
2
votes
1answer
227 views

Am I allowed to sleep on Rosh HaShanah?

Is a person allowed to sleep during the day of Rosh HaShanah? I have heard that you're not.
5
votes
1answer
155 views

Are weekday-afternoon naps permissible?

I wonder what Jewish law and thought say about taking weekday-afternoon naps. Are they encouraged? Allowed? Discouraged? Forbidden? Please cite sources.
7
votes
1answer
809 views

Davening after the zman

Can someone please explain the halachot for someone who wakes up after zman kriat shema? After zman tfillah?
2
votes
1answer
98 views

Og's bed made of iron

Devarim 3:11 desribes Og's bed as being made from iron. What does the the Torah add by describing Og's bed as being made from iron? The Ramban comments that it demonstrates how tall he was, that wood ...
6
votes
0answers
174 views

Chatzi LaHashem

I've been having this discussion with my friends and family about the Halacha of dividing Yom Tov into Chatzi LaHashem (half of the day devoted to prayer and learning) and Chatzi Lachem (half of the ...
8
votes
1answer
140 views

Do you have to do netilat yadayim for a brief waking?

If a person wakes up in the middle of the night to perform a small, brief action (say putting a pacifier back into a baby's mouth) is she required to do netilat yadayim (washing her hands ritually)?
9
votes
1answer
230 views

Yichud at night, if both of the woman's parents are home

Is it permissible for a man to be at a woman's home at night if both of her parents are at home, but sleeping? What if they are awake?
7
votes
1answer
111 views

Why does the Gemara often mention that certain Amoraim were asleep?

I've noticed that in the Gemara you often see a pattern where two people are discussing an issue in front of an Amorah (e.g R' Yirmiyah) while he was asleep. After their discussion he wakes up and ...
8
votes
3answers
850 views

Halachic/sociological basis to support the split-apart beds for a nida couple?

I'd seen a clip from a TV show that's about Orthodox Israelis in which a married couple has a bed that's one big frame, upon which two mattresses can either slide together or apart, depending on the ...
5
votes
1answer
69 views

How did 'Eli know HaShem was calling to Shemuel?

In Shemuel I (3:1) the Pasuk tells us that prophecy was a very rare phenomenon. How, then, did 'Eli realize that Shemuel was receiving prophecy and not merely dreaming?
6
votes
5answers
319 views

If sleeping suffices for “ad d'lo yada”, why drink?

The Shulchan Aruch (OC 695:2) writes: One must become drunk on Purim until he doesn't know the difference between "arur Haman" and "baruch Mord'chay". The Rama (ad loc.) adds: But some say ...
2
votes
1answer
167 views

Up all night Hoshanah Rabbah: why?

Why do we stay up all night on Hoshanah Rabbah, and what is its source?
8
votes
3answers
596 views

Lubavitch not sleeping in a Sukka?

If Lubavitch is careful not to eat or drink anything outside of the sukka, why does Lubavitch not sleep in the Sukka?
9
votes
2answers
410 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 ...
12
votes
3answers
511 views

Limits to Dina Dmalchusa Dina

What are the specifications of Dina Dimalchusah? A more targeted question to answer would be: If I ripped off the label of my mattress — the label that says its removal is punishable by federal ...
7
votes
4answers
289 views

Is Ferberization okay?

Is there anything objectionable (in terms of halacha, hashkafa and middos) to using the Ferber method for training an infant to fall asleep on its own? There is an element of cruelty, and the ultimate ...
6
votes
3answers
510 views

When to say Hamapil

In the bedtime shema, some siddurim have the bracha of Hamapil printed immediately before the paragraph of shema, whereas others have it printed at the very end of the bedtime shema prayers. What is ...
3
votes
3answers
1k views

falling asleep on the left side to aid digestion

Kitzur Shulchan Aruch 71:5 reads, in part (translation my own): And it's good that he'll lie at the start of his sleep on the left side and at the end on the right side, as this is good for the ...
10
votes
1answer
171 views

Is there an Inyan for females to stay up Shavuos night?

Should females remain awake the night of Shavuos? (sources please)
6
votes
3answers
239 views

Birchas HaTorah - everyone was awake all night

Suppose everyone in the Shul remained awake the whole night of Shavuos. What do you do regarding Birchas HaTorah?
8
votes
1answer
261 views

When does one stay up all night?

Can we get a complete list of occasions (dates or other occasions) on which someone (everyone, or just those with a particular circumstance) stays up all night (on purpose)?
6
votes
2answers
159 views

In Modeh Ani we thank Hashem for our neshama's return. Where do neshamas go?

In Modeh Ani we thank Hashem for returning our Neshomos when we arise. Where do they go during our sleep? Do they go to the same place as the neshomos of the deceased?
3
votes
1answer
294 views

I sleep with tzitzis on. Is there any part of the body they shouldn't touch?

I sleep with my tzitzis on. Is there any part of the body the tzitzis should not touch?
5
votes
1answer
105 views

Sleeping Tumah Transfers

If someone wakes up and touches another object before washing his/her hands, does that object get some level of tumah as well?
5
votes
2answers
156 views

Sleeping on Food without a Bed

For example, if one is on an airplane, and puts food under his/her neighbors seat, and then the neighbor falls asleep, is the food permissible? Does the prohibition only apply where it's a bed, or ...
1
vote
1answer
90 views

Sleeping on Stones

Where does the Minhag come from that we should sleep uncomfortably on Tisha B'Av?
5
votes
4answers
199 views

Do blankets need tzitzis?

Blankets have four corners. So, do they require tzitzis?
6
votes
2answers
493 views

Waking up in the middle of the night

If one wakes up in the middle of the night to relieve oneself, what is the proper procedure regarding washing and the brachos of asher yatzar and hamapil?