I've done it 3 times and our results work, but for each their own. I was just sharing how.

I have friends that have struggled though. A couple I know still have their 7 year old crawling into their bed every night. A different couple have their son showing up at 3am and gets them up.

Consistent lack of sleep can have detrimental effects both physically and mentally. We manage a good night's rest the vast majority of the time (sickness or other outliers being the exception).