Women..going to bed with no underwear on?

I have been batteling with bv for a few months, and finally it's gone (for now) but the gel gave me a yeast infection, so now I'm on the pill for that again. last time this happened it allowed the bacteria to overgrow and gave me another case of bv. hopeully it won't do it this time. Anyway, I've been looking up ways to keep these problems from happening, because I know from research that there r lots of women that go throught this. I've been changing my diet, staying away from a lot of candy. Instead I stick to my fruits and cranberry juice, I try not to stress myself out, and I'm thinking about getting off of this yasmin too which is probably causing some of the problem. I take showers all the time, but I make sure I use the soap very lightly in my vulva area, and just use water when it gets around my area. But I came across someone who is in the same situation as me and said that sleeping without any panties on work. I'm like "ugh," what if something happens in your sleep?