Yasmin and little sleepy

I've been on Yasmin for a couple of months, and I'm very happy with it. - No bloating or weight gain, my breats went up a size in the first three weeks and were tender, but the tenderness faded and I feel great.
My appetite has increased slightly, and water consumption - I have to be a little more careful in that I become dehydrated a little easier, do I drink plenty of water. It's cleared my skin up marvelously, and as a side bonus, I was booked in to see a dermatologist about hair loss, but since taking yasmin I've stopped shedding and my hair is actually growing thicker and feels softer.
I haven't experienced mood swings with yasmin, if anything it seems to be improved, particularly a few hours after taking the pill.
I do have to take them at night though, as I find it makes me a little sleepy.