My DS is nearly 6 months and has always napped a lot... He has around 4 naps a day and is usually only awake for a maximum of 3 hours before showing signs of tiredness again. he will often only have little catnap but sometimes sleeps for up to an hour at a time.
I am not overly concerned as he is developing in leaps and bounds and seems happy and healthy... only mentioning this as my friend seeemed to think it was unusual to sleep so much at his age.
shold i be worried? or should i enjjoy the peace and quiet when he's napping?