I'm sure it depends on people to people. Everybody has different tolerance levels for both alcohol and caffeine. For me, mostly it doesn't disrupt my sleep even

I'm sure it depends on people to people. Everybody has different tolerance levels for both alcohol and caffeine. For me, mostly it doesn't disrupt my sleep even if I drink an hour before to go. But, the thing is decreasing anxiety level if I'm surrounded by a crowd. My focus can be easily fucked up then. While alcohol feels more comfortable at the same time.