Topic Explanation
The discussion revolves around the issue of an ostomy bag filling with air overnight, particularly in individuals who use a CPAP machine for sleep apnea. The original poster is seeking advice on how to manage or prevent this issue, as the bag fills almost to bursting due to the air pressure from the CPAP machine.

Extracted Advice and Helpful Insights
1. CPAP Placement and Usage:
- Ensure the CPAP mask is properly positioned over the nose and not near the ostomy bag to prevent direct air flow into the bag.
- Consider using a chin strap with the CPAP machine to prevent mouth breathing, which can contribute to swallowing air.

2. Dietary Adjustments:
- Monitor and possibly adjust your diet to avoid foods that can cause gas and bloating. Common culprits include carbonated beverages, dairy products, and certain vegetables like cabbage and broccoli.
- Consult a nutritionist familiar with ostomy care for personalized dietary advice.

3. Ostomy Bag Features:
- Use ostomy bags with filters to help manage gas, although effectiveness can vary and filters may clog when wet.

4. Sleeping Position and Behavior:
- Adjust your sleeping position; some find relief by not sleeping on their back as it may increase the likelihood of swallowing air.
- Consider setting an alarm to wake up periodically during the night to release any accumulated air in the ostomy bag.

5. Medical Consultation and CPAP Adjustment:
- Discuss with your healthcare provider or a sleep specialist about adjusting the settings of your CPAP machine, particularly the air pressure, which might be set too high and contributing to the issue.
- Explore alternative treatments for sleep apnea, such as a dental mouthpiece, which might not introduce as much air into the digestive system.

6. Patient Experiences and Experimentation:
- Some patients have shared that despite trying various adjustments, they still need to wake up during the night to manage the air in their ostomy bag. This suggests that individual experiences can vary significantly.
- Continuous experimentation with different solutions and adjustments, as well as patience, are often necessary to manage this issue effectively.