However when this condition begins to recur in both old and young people then this is a clear sign of a physiological problem and research has distinguished a particular relationship between sleep apnea and nightmares. During sleep apnea your brain senses the low oxygen and realizes that you are under a very real threat you are being choked or smothered by your own body and if nothing is done you will die. Coping With Your Toddler S Nightmares Or Night Terror Can Be A These include sleep apnea and restless legs syndrome. Sleep apnea and nightmares . Sleep apnea and nightmares some sleep apnea patients have reported having nightmares where the feel like they re suffocating or drowning. If no other cause can be determined chronic nightmares may be a distinct. 22 24 sleep apnea has been reported to affect up to 56 of ptsd patients. Sleep apnea night terrors and nightmares but it may be that nightmares are not your primary problem. Nightmares in adults can be caused by certain...