David it is CPAP as CRAP is something entirely different
Here is some information;
How is OSA Treated? (Obstructive Sleep Apnea (OSA))
The most common treatment of OSA is CPAP (continuous positive airway pressure) therapy, pronounced �see-pap�. It is effective in almost all cases. CPAP provides light air pressure to hold the airway open and, as a result, allows uninterrupted sleep throughout the night. Normally the air is delivered through a small mask worn over the nose during sleep. There are many different types of masks, and finding the most comfortable one is very important.
Whilst the CPAP system may look a bit daunting, you will find that using it has minimal effect on anything but your sleeping. Putting on your CPAP will quickly become part of your regular routine. Please look at the equipment available for all the different options.
CPAP therapy has been successfully used, since discovery in 1980, to treat patients with sleep apnea.