I think it's not unheard of.
You might try exercize and yoga or even meditation as well, and see if that works.
Some people think the "Blue light" of computers/cell phones keep people awake.
There's a long list of other things, if you do the research
"The most common causes are:
stress, anxiety or depression
noise
a room that's too hot or cold
uncomfortable beds
alcohol, caffeine or nicotine
recreational drugs like cocaine or ecstasy
jet lag
shift work" --nhs.uk
"go to bed and wake up at the same time every day
relax at least 1 hour before bed, for example, take a bath or read a book
make sure your bedroom is dark and quiet – use curtains, blinds, an eye mask or ear plugs if needed
exercise regularly during the day
make sure your mattress, pillows and covers are comfortable
Don’t
do not smoke or drink alcohol, tea or coffee at least 6 hours before going to bed
do not eat a big meal late at night
do not exercise at least 4 hours before bed
do not watch television or use devices, like smartphones, right before going to bed, because the bright light makes you more awake
do not nap during the day
do not drive when you feel sleepy
do not sleep in after a bad night's sleep and stick to your regular sleeping hours instead"