Are there any minhagim which people do on shavous night as a substitute for staying up all night? I just want to know if this type of minhag exists or existed.
I saw it brought down in the שפתי חן on shavuos that some Rebbes make a tish on the first night in lieu of saying the tikkun leil shavuos because תערוך לפני שלחן has the same roshei teivos as תיקון ליל שבועות
Edit: it's seems that according to that minhag they stay up until just after chatzos and then go to sleep. This is considered their tikkun. It's my understanding that this is because our generation is considered too weak to stay up all night and do the full tikkun properly.