11 year old wets the bed

My 11 year old wets the bed at least 3-4 times a week. I am at my wits end. She doesn’t fit pull ups anymore, so we tried depends and it soaks right through them because she’s too small for them.. anyway long story short, she has encopresis, which does affect her bladder function. I just literally don’t know what to do. She won’t take her fiber or meds for that condition. My mom suggested we stop liquids at 6pm, but that’s not ideal being as though it’s summer. We use pee pads, mattress protection, but everything soaks right through.

Has anyone experienced this?