12 week old went down for a nap at 15:30 and is still sleeping now at 18:30. Tried to wake him about 18:00 but he's absolutely zonked. Normally does a few 1 hour naps thru the day, so didn't expect him to be asleep so long.
I'm trying to start bath routine between 18:00 and 18:30 with an aim for 19:00-19:30 bed time. Should I get him up and into the bath now, or just leave him until he wakes up? OR, just put him straight back into bed???