I nap only once now

It seems my napping routine has changed now. I nap around 12noon for about two hours now. I no longer take my afternoon nap which used to be around 5-6pm. Instead, mommy tries to get me to fall asleep around 10pm. I have been waking up one hour later and crying my eyes out. I don't stop crying until mom or dad puts a DVD on for me, then finally I fall back asleep. I wake up around 6am in the morning. I still wake up several times through the night for a bottle and to hug my dada.