I've started using the Lunette 1 today and I've noticed I have to change it sooner than the recommended 8 hours (need to empty at about 6). I am considering buying a larger cup, since I'm a bit afraid to bleed very heavy through the night and stain the sheets and I don't want to worry about that every month. When I use tampons the Tampax Super+ is enough for my heaviest night. Should I switch to a bigger cup? If so, recommendations? Lunette 2? Or maybe an Organicup (that one has caught my attention as well)? Model A or B?