i've tried the same thing. even though i did it somewhat wrong, i still wouldn't recommend you do it. it probably won't work and your more likely to take a very long nap, feel drowsy/high for the next few days, and end up in the hospital.
even though i only took ~7mg, i was knocked out completly for 17 hours, still feeling tired and taking naps after that. (not to mention that i have insomnia, and i usually get less than 7 hours, but i wake up many times in the middle of the night.
i agree with the others though, adding opioids could make this work. good luck <3