A CPAP chinstrap can be a very useful accessory because most of the complaints about CPAP machines are related to the discomfort of wearing a breathing mask. Although the sleep apnea itself is a continual sleep disruption, it is generally unknown to the sufferer. The sleeper is very aware, however, of the breathing mask because, whether sleeping or not, many people find breathing masks to be quite claustrophobic. For people who toss and turn while they sleep, the mask may move around and become dislodged or out of place, causing them to wake up or be very uncomfortable while sleeping. This is where the CPAP chin strap can help. A CPAP chinstrap is basically just an extra strap that helps to hold the mask in place while sleeping. Because it is worn on the chin, it secures the mask, helping to prevent movement and slippage. Once the sleeper becomes accustomed to the feeling of the chinstrap, the strap is not really noticeable, and it can make wearing the mask significantly more comfortable.
Of all the accessories that can be used with CPAP machines, a CPAP chinstrap is one of the simplest and cheapest. If you are currently using a CPAP machine to treat sleep apnea but are bothered by significant discomfort, try getting a chin strap to see if it helps before deciding to discontinue your CPAP treatment. It is amazing, sometimes, how much difference a tiny change can make. (FactExpert, 2005)
From: FactExpert, (2005). CPAP Therapy Improved with Chin Strap. Retrieved January 17, 2009, from Chin Strap: Great Accessory for CPAP - CPAP at Fact Expert Web site: http://cpap.factexpert.com/1340-cpap-chin-strap.php