I wear the 12" length bag (that's the larger of the 2 offered by Convatec) and just fold it up. If the space is needed thru the night, it is there. If not, no worries. I also agree with not eating late at night and try really hard to stick to it. I value my night time sleep!
Diagnosed with CD in 1979, many resections and meds
Perm Ileostomy July 1984 at Cleveland Clinic
Disease free since surgery