The Abena Specials are rated at an M2. I don't know how bad your issues are, but I typically go through 2 a day. I haven't had any leaking issues with them, but I've found odor to be a bit of a problem if I keep them on the entire day. They are very comfortable and discreet under clothes.
Confidry 24/7 briefs are the tape on style. I can sleep through an entire night without leaking. I typically woke up wet or in the middle of wetting with some briefs, but with these I've found that I sleep through the whole night with no issues.