My CHN told me good day sleeps = good night sleeps and for us that is certainly true. I also never wake a sleeping baby unless necessary.
It's so much easier to get a tired baby to sleep than an overtired one. For us, overtired in either the 3yo or 5mo results in tears and a rough time. If they are just tired, they go to sleep quite quickly and easily.
Babies and toddlers need lots of sleep. My toddler still has a couple of hours in the afternoon and is a right grump if he misses it for some reason.