My kids are older. Ds stopped napping at age 2, maybe a little younger. Dd did short naps (never longer than 45 minutes) until she hit 3. Then she started taking long naps, but only at daycare. But if we let her sleep too long, then she was up until all hours at night. At home, she never napped.
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For both kids, there was an awful period for 3-6 months while they transitioned out of a nap. They were too tired to go without one, but didn't sleep or wouldn't ever go to bed if they did have one. We gave up attempting naps when it took us longer to get them down than they slept for.