My DS is 5 months old and is currently napping. He fell asleep at 1.05pm and it is now 3.45pm. How long is too long? Should I be waking him up from long naps? I have just been letting him sleep. Mostly he only has 3 naps a day and sometimes they are only 30 mins long. Other times like today he has a big nap. He normally goes to bed around 8.30pm. I wish I'd have known it was going to be this long I could have cleaned my windows... (instead I'm drinking tea and reading mumsnet).