I've had my mooncup for over eight years and recently it seems to leak more often than I'd like. Used to leak maybe once a month on night one or two which I put down to not being emptied for longer and laying down. But recently on heavier days (I don't particularly have heavy periods, usually just one or two days) it can start leaking after less than an hour.
Last month I used tampons after I leaked overnight and blood was leaking down my leg in the shower even with my cup in. The month before on day four when I thought the flow had slowed, we were out for the day an hour from home, and I leaked visibly all over my jeans, so we had to go home.
Do mooncups stop working as well after a while, so I need a new one? Loathe to spend money on a new one if I'm just not suited to them any more.