I absolutely agree as somebody with a debilitating genetic disorder. Both my mother and grandmother have debilitating insomnia to the extent of having seizures after not being able to sleep for 4 to 5 days. My grandmother passed at 70 and was "glad to die"
Lack of sleep also contributes to dementia, which my mother is dealing with early onset, at 63.
I want children but will definitely be adopting, at least until I can confirm I won't spread that mutation. Personally I have delayed circadian rhythm but have not yet encountered severe insomnia. Both of their insomnia symptoms began after menopause, so we'll see if I get it at all.
Both of my sisters also struggle with maintaining a circadian rhythm as well.