I sometimes have nights like that when my wife works overnight, and my toddler wakes frequently from teething.

What I do is I take a THC tablet 2-3 hours before bed. Specifically, 5mg of delta-9 THC and 5 mg of TAC. It makes me sleepy enough that when I have to wake up for my toddler, I can quickly fall back into a deep sleep.

(I live in a state where pot is legal without a prescription.)

Many people don't realize this, but pot's effects vary widely with the strain. I suspect that the combination of THC and TAC makes the tablet very similar to an indica strain.