My MIL has my sister in law's 2 year old for 2 days a week while SIL works. The little one is a handful and MIL is almost 70 with a bad leg.
Basically what's been happening is that dnephew has a nap at about midday for around 45 mins, but when he wakes up, MIL has been making him go back to sleep for another 2 hours or more.
He's crying for around half an hour after initially waking but MIL is struggling and making him nap again...which he does after a while.
SIL has been complaining that he won't sleep at night...well of course he won't!
He's basically in a dark room from midday to about 3.00pm or even later.
I've not said a word about this but feel that it's not good for nephew...I can't look after him as I have my own work and DC.