I use the Mirage Liberty full face CPAP mask with nose pillows and headgear along with a contoured CPAP pillow. The mask is quite comfortable. I am a side sleeper and every time I turn in my bed the nose pillows leak waking me up. With disturbed sleep, I often wake up with a headache. I put on the nose masks first but the chin strap could not keep my mouth closed. (Pressure was 14). Does anyone here know of any full face mask that is well suited to side sleeping? Also, how do I avoid swallowing too much air?