DS is 11 months. He's been walking on furniture for a while, but just figured out he could do it in his own crib. He will not take his afternoon nap. He just spends the whole time walking around the crib. He's not really crying, just sort of whining. He doesn't have any toys (besides his pacifier) in bed.
His morning nap is usually around 1-1.5 hours and he goes down immediately.

It seems to early to go to one nap. Is this true? My 20 month-old nephew is still on 2 naps. It's driving me crazy listening to him talk in bed and knowing our evening will be really tough because he's been awake since 10:30am. Any advice?