Sleep apnea makes it hard to breathe while you sleep. Most people start with a CPAP machine. It gives steady air pressure to keep your airway open. But sometimes, CPAP isn’t enough. That’s when a BiPAP machine can help.

BiPAP stands for bilevel positive airway pressure. It gives one pressure when you breathe in and a lower pressure when you breathe out. That makes breathing easier for some people.

Here are signs that CPAP might not be working for you—and why a BiPAP could be a better choice.

1. You feel air pressure is too strong

Some people feel like they’re fighting against the CPAP. Breathing out feels hard. If that’s you, a BiPAP can help. It eases the pressure when you exhale, so your breathing feels more natural.

2. You wake up tired even with CPAP

If you’ve used your CPAP for a while and still feel tired, something may be off. A BiPAP machine might be better suited to your needs—especially if you have more complex breathing problems.

3. You have central sleep apnea

Not all sleep apnea is the same. Some people stop breathing because the brain doesn't send the right signals. This is called central sleep apnea. CPAP doesn’t always help with this. BiPAP is often used in these cases.

4. You have other health issues

People with heart failure, lung disease, or certain neurological disorders may need BiPAP. Conditions like ALS, Parkinson’s, or neuromuscular disorders affect how your brain and muscles work together. A BiPAP device helps by giving more support with breathing.

5. Your doctor says your CO2 is too high

Some people don’t breathe out enough carbon dioxide while they sleep. This can make them feel dizzy, confused, or short of breath during the day. A BiPAP can help get rid of that extra CO2.

6. You have insomnia or anxiety with CPAP

Using a CPAP mask can feel uncomfortable. If you already have insomnia, it might make things worse. Some patients say CPAP makes them feel trapped. A BiPAP has gentler pressure during exhale, and that can ease stress.

7. Your neurologist recommends it

If you're seeing a neurology doctor and they suggest BiPAP, it’s likely because your breathing is affected by something deeper—maybe a neurological issue. For example, sleep-related breathing problems often come with brain or nerve conditions. In those cases, CPAP might not be enough.

What makes a BiPAP device different?

Unlike CPAP, a BiPAP changes the pressure when you breathe in and out. It’s a more flexible machine. It adjusts to your needs better, especially if your condition is more complex.

Some BiPAP devices come with detailed monitoring. They help track your breathing patterns. And if you’re using a ResMed mask or device, the data is easy to read and share with your doctor.

Final thoughts

CPAP works well for many people. But if it’s not working for you, or you have a neurological condition, a BiPAP might help. Talk to a sleep doctor or neurologist. They’ll look at your sleep study and help you choose the right device.

We provide authorized ResMed devices, including CPAP, BiPAP, and masks. If you’re dealing with insomnia, sleep apnea, or other neuro conditions, we can help you find what fits best.