Ex and I have a 15 month old baby. Basically, he thinks, and has always thought that it’s ok to deprive her of naps and/or wake her up when she’s asleep because he wants to take her somewhere and it always has to fit round him. He was the same when we were together and he’s the same now. He asks to pick her up from my house for contact time when she’s due a nap.
Disclaimer - she can’t sleep at his house because he lives too far away.