Currently, I have 2 jobs because like many others are saying here, only one source of income isn't enough for the whole household to survive. Yes all of us here in the house are working (but I'm the one who's working from home), but still I prefer having a 2nd source of income just incase my main source of income unfortunately ends up for whatever reason it is.
Like you, I already sacrificed my sleeping time, and there are times where I only sleep 5-6 hours a day because aside from my work, I'm also the one doing the household chores since I'm the only one who's in the house all the time. I wonder how much sleep I can get whenever we will have our own baby. This is also the reason why I'm putting most of my money now in the stock market. I have a specific target where I want to earn X amount of money every month thru dividends. It will be a huge amount for sure, but I know I can reach that. Sacrifice first before comfortability.