My mom recently got a cold which turned into light bronchitis ( no fever) just phlegm. 10 days after she started closing her eyes during the day. She can hear us, she can laugh but keep them closed. She opens when we ask her to but just for a few second. If asked why are you closing her answer is i am just resting and that it is more comfortable. Anyone had this happen with Alzheimers? she is still eating and drinking ( with help) she walks and all else is normal..