I'm embarrassed to say this, but I do not sleep daintily at all-- I have my mouth hanging open all of the time while I'm sleeping (as DH fondly reminds me.) When I temped orally, I had some issues with crazy up-and-down temps on my chart, so I tried temping vaginally (as some of you suggested on here-- thanks, by the way!) and it's become a lot more consistent. I prefer it.