Is it possible for babies to sleep with their eyes open?

My almost eight week old LO is down for a nap and when I checked on her her eyes were a wee bit open but she didn't appear to be awake! She was gently wriggling and wasnt distressed in any way, but I'd hate to think of her lying there feeling lonely and neglected because we do put her down awake for naps.

And fwiw my dog can sleep with his eyes open...