Now for once red I am being serious I have noticed that me dog has been snoring a little and also wheezing a bit over the past couple of months and he has never done that before.
Could be a touch of flu but didnt think animals could catch that.
But then again he is 6 years old now so maybe its his age.
My cat does that, the vet said that it is probably asthma and that central heating makes it worse, maybe its because your heating is on more often no that its winter and it's affecting your wee cat.
Doesnt cause our cat any serious bother though so as theonlyone said, I wouldn't worry too much about it.