Possible (small) experience

Possible (small) experience
Time: Approximately 2 months ago late at night.

Location: above my bed (UK).

Let me preface this by saying I didn't consider this an experience at the time but after reading about the guy who saw a floating hoop in a field I'm willing to at least acknowledge the possibility. 

I woke up in my pitch black room one night and saw something like a white flair that didn't illuminate the surroundings. There was no noise or feelings connected with it, just my reaction of 'what the fuck is that' I just blinked a few times and it disappeared. My first thought was that it was just some kind of visual or processing error on my part (and probably still the most likely explanation), I didn't even consider that it could have been connected to this stuff till I saw the hoop post. To my mind I still consider this subject as mostly mechanical or possibly plasmoid in nature, but I suppose reality has no obligation to make sense to me. 

It hasn't happened since.
Can anyone shed more light on this? Either as a misfiring synapse, or as a possible aspect of 'the phenomena'.

Thanks for reading and sorry I couldn't be more insightful