I find when in those situations Power Nap works decently - for awhile. Luckily I only have to do it once in awhile.
I slam something high in caffeine (ice tea, soda, energy drink) and then immediately pass out. It only works if I’m already fighting staying awake.
An hour or so later I’m up again and can complete the day.
Right now, the bedtime is a problem - revenge bedtime procrastination + everyone getting used to me doing extra work overnight during some more busy times (I work remotely, so sometimes I handle kid emergencies during the day) + various other issues --> even if I had an "insta-sleep" pill, I'd have hard time getting myself to take it before 02:00.
A SAD lamp is something I'd like to try in general, maybe it'll improve my overall mood or something. I seem to function best in either near-complete darkness (i.e. only light being the screen, indicator LEDs and some street lamps in the distance outside), or very bright environments. The average brightness people I know keep at home makes me instantly sleepy, and I spend most of my cognitive resources on forcing myself to stay awake.