I remember hearing that you can't sleep with socks. I think Rambam stated this (correct me if i am wrong), but where in Rambam was it said and why do we do it?

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  • @Danno The Mishna Berura cited there is an answer -- why don't you post one?
    – MTL
    Nov 27 '14 at 17:12
  • @Shokhet this is interesting info but not an answer until it can be ascertained that the motivation for the question was tznius and not health or superstition.
    – user6591
    Nov 27 '14 at 17:28
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    @user6591 I think it's just a source for the idea of caring whether or not someone sleeps in socks. The Rambam is not a place you'd generally find superstitions, IMO.
    – MTL
    Nov 27 '14 at 18:06
  • but mainly why do we do it Nov 27 '14 at 18:38

As a supplement to Matt's answer; see Mishna Berura 2:1, who writes that

מיושב: דאז בהכרח יתגלה גופו והאדם צריך להתנהג בצניעות ובושה לפני הקב"ה ואפילו כשהוא לילה ובחדרי חדרים הלא מלא כל הארץ כבודו וכחשיכה וכאורה לפניו יתברך....ע"כ האנפלאות יראה ללבשם או לפשטם ג"כ תחת הסדין שלא לגלות רגליו שדרכן להיות מכוסות לעולם במדינות אלו שאין הולכין יחף אפילו בקיץ....‏

That way, a person would reveal his flesh, and a person needs to act modestly wherever he is, even in private, because Hashem is everywhere. Even at night, and in a closed room; for "the world is filled with His glory," (Yeshayahu 6:3) and dark and light are the same to Him....therefore, it would appear that one should put on and take off one's sock under his covers, so that his feet should not be uncovered, for it is the norm in our places to always walk around with our feet covered, even in the summer we never walk barefoot....

( my own translation )

In context, it's clear that the issue with this is because of tzniyus, modest dressing.

[h/t Danno in comments]

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    I don't see how this answers the question (or why it has a checkmark). This cites a source for not going barefoot out of bed; the asker seeks a source for going barefoot in bed.
    – msh210
    Nov 28 '14 at 2:35
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    Although the OP selected this answer, it does not appear to answer the question as asked.
    – Seth J
    Sep 18 '15 at 14:45

The Gemara (Yoma 78b) writes that one who sleeps with shoes on, 'has tasted a taste of death', and since tasting death is probably not a good thing, some poskim write that sleeping with shoes on should be avoided (see Kaf Hahayyim Y.D 116:211, for example). The book Shemiras Haguf Vehanefesh (no. 115) also writes that wearing shoes to sleep causes someone to forget his learning. However, this rule is never quoted by the Rambam (as far as I'm aware)

Perhaps some people believe that socks are like shoes in this regard, though I personally don't see why that would be the case. The Mishna Berurah 128:18 writes that while Kohanim are not allowed to wear shoes while they bless the congregation, they may (and should) do so while wearing socks - so at least in some respects socks and shoes are not equivalent


Maybe because of this (but this is only for men)

Shulchan Aruch Harav 619.18 (from the Shalo)

...In addition, one should make a point of not covering himself with [so many] blankets and spreads that [his body] will be excessively warmed. One should at least leave his legs uncovered, as alluded to by the uncovering of Boaz’ legs, so that one’s body will not become excessively warmed.


Additional sources regarding shoes, sandals and slippers (but not socks) include:

  • Rav Yosef Haim of Baghdad, in Parashat Pinhas Shana Sheniya, 16
  • Rav Haim Kanievsk

There is also a disagreement on the length of sleep required for this to be a problem.

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