Glad your mom is doing better, thanks to you checking on her and the help she received in hospital.
I'm with SBF on this. Almost all of our perception and decision making is done in our subconscious, and we're totally oblivious to many of our mind's processes....you not being able to sleep could just be a basal reaction to you receiving input you didn't consciously notice. Maybe pheromones, a subtle change in your mom's breathing or behavior before you went to bed. So you checking on her may not be coincidental at all.
As for your father's text: what kind of trouble did he dream up for you? Could he have had any (subconscious) input that made him uneasy?
Even if not, we need not assume some supernatural process at work. Humans tend to greatly underestimate the nature of chance combined with large numbers. Yes, someone not being able to sleep at the same day a relative has health problems is incredibly small. But now factor in the number of people on earth, the incredibly large amount of nights spent with trouble sleeping during their combined lives, and the number of relatives that suffer some nightly medical crisis. It's simple math: the odds to 'win' are very small, but with many billlions of opportunities someone sometime will 'win' that lottery and check on a relative with health problems while someone else sends them a nightly text message - by pure coincidence.
And if we assume some other dimensional or otherwise yet unknown process 'warned' you or made you check on your mom, why doesn't that process work most of the time? Many people suffer a health crisis (and even die) while their relatives sleep soundly.
Interesting stuff nonetheless. Whether coincidence, subconsciousness, other dimensions or ethereal causes are at work. No doubt there are many things about our universe (and perhaps others) that we don't know yet.
Glad they worked out for your mom and you.
Btw lucid dreaming has been known and studied since antiquity... https://en.wikipedia.org/wiki/Lucid_dream