Hi DawnK,
I agree with Bill, your husband should see his doctor about these issues. You're husband is exhibiting many of the typical symptoms of sleep apnea, so he should be tested. Don't delay seeing a doctor, and try to make him drive as little as possible. We think we can jolt ourselves out of drowsiness in time before creating an accident, but it does not always happen. I've known people who just fell asleep, like passing out, without any sign of falling into drowsiness. And drowsy driving is a danger to everyone. Get him tested so that if indeed it is sleep apnea, he can be treated.
As to the talking in one's sleep, I don't know either. But people with untreated sleep apnea have disrupted sleep stage patterns. Sleep talking doesn't occur during REM (dream sleep), I'm told. It could be he's stuck in other stages of sleep. With disrupted sleep from the apnea, we don't go through all the phases or as often, so I wouldn't be surprised if the sleep apnea makes the sleep talking happen or happen more often.
Good luck, hope he gets tested soon.
Linda
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