DS (3) has a 2 hour nap after lunch most days. I think this is starting to affect his nightime sleep - he goes to bed at around 8, but sometimes isn't asleep until after 9. At weekends I generally don't let him nap, and he's fine with it. If he's tired in the evening, he will fall asleep straight away.
The problem is, DH is a SAHD, and he's used to having a couple of hours to himself in the daytime. I suggested cutting out the nap - DH said he'd cut it down. Yesterday he cut it to 1.75 hours... Should I insist on dropping the nap, or am I being unreasonable?