The topic at hand is about dealing with the frustrating issue of night-time leaks from a colostomy bag. The person experiencing this problem has tried various solutions, such as changing wafer brands, using elastic barrier strips, and adjusting their eating habits, but nothing has worked so far. They are seeking advice on how to prevent these leaks while sleeping. Here are some suggestions and insights that might help:

1. Consider using a moldable barrier ring around the stoma to enhance the seal. Warm the ring under your arm for a couple of minutes to make it easier to shape. If it tears, place the tear at the top. You can apply the ring either to the wafer or directly around the stoma before attaching the wafer.

2. Thickening the output can help maintain the seal:
- Try psyllium powder supplements.
- Eat foods that naturally thicken output, like peanut butter or rice.
- Use an on-demand anti-diarrheal, such as Imodium, to slow down night-time output.

3. Evaluate your appliance and wafer choices:
- Determine if you need a flat or convex wafer, as the wrong shape can lead to gaps and leaks.
- A two-piece system with a good barrier ring can often last 5–7 days without leaks.
- Some products that have been effective include Coloplast SenSura Mio 1-piece pouches with Coloplast Protective Seal barrier rings, and Hollister barrier extender strips, which are gentler on the skin compared to some less expensive alternatives.

4. Adjust your sleeping position and bed setup:
- Try sleeping slightly elevated on your back or side so that the output drains downward into the pouch instead of pooling at the flange.
- Consider raising the head of the bed, lowering the foot, or using a recliner to keep your torso higher than the pouch.

5. Keep a short food journal to track what and when you eat, and compare it with your night-time output. This can help identify foods or eating times that increase output while you sleep.

6. Remember that patience and experimentation are key. Once you find the right combination of wafer style, barrier ring, diet, and sleeping position, night-time leaks usually stop.