My DS is 8 months and (on good days...) his A times consist of 2-2.25 hours, then 3hrs, and depending on 2nd nap 3-4 hours before bed. We've been trying to drop the 3rd nap, depends on our day.
We do just a 5 minute wind down as well, reading or just rocking in his room. Even if he dosen't stay still, we're away from the toys and other people in the house, sometimes he plays for a few minutes in his crib before he falls asleep. I have noticed since he's learned to stand and walk around on furniture he's struggling to go down as well, especially since he can stand in the crib now- but I wait until he gives the 'mad cry', go in and resettle him and MOST of the time he's down for the count.