DD2 hasn't been a good napper in a couple of months but right now she's terrible, fighting sleep whether in the cot, the car, the sling or on the boob. Just wondered how often/for how long other people's 4 month olds were sleeping? DD1 was a poor sleeper but did have 4-5 naps totalling 3-4 hours at this age iirc, DD2 only managing 3 totalling 1.5-2.5 hours which doesn't seem enough but I wonder if I'm just over-comparing?