Argh!!! My "good sleeper" napped until 48 months, the others were forced to stop napping at 24 months or they were awake all night and got less sleep in 24hrs than they did without a nap. I had to pull the eldest out of a daycare provider who simply could not comprehend that 1/2 nap in the day caused her to go to bed 3 hrs later, wake up more and often get up earlier. Where as no nap and she'd collapse into bed at 6:30, sleep better all night, until a reasonable hr in the morning and then have a decent day the next day... But if she napped even 20 mins she'd be down 3+ hrs sleep that 24 hr period and it would be days of agony as we corrected it, only to repeat the next time she went to care. It was a nightmare.
#2 could nap and still sleep well at night until she was 4ish, #3 was more like the eldest but less extreme...
