Nightly leaks

 Has anyone noticed leaks when sleeping? And only in certain sleeping positions. I'm curious because I've been using Diva Cup for 3 cycles now and have never had any major leaking at night (I usually sleep on my side or stomach). The past few nights for whatever reason, i've been rotating in my sleep onto my back. And when i wake up in the morning, i have stained undies. So last night I tried to make sure I slept only on my stomach and noticed no leaking at all...but then again my period is lightening as its almost gone.


Anyone else with similar experiences??