My 5 month old is a brilliant sleeper at night, I'm very lucky - 12+ hours with 0-1 wake-ups to feed. Counting my lucky stars because she had an awful 4 month regression and I never would have guessed she could figure this out.
However, her naps are very short - normally 3 x 25 mins - whether she's in her cot, on my lap, in the carrier, in the pram or in the car. Does this matter? She usually seems rested afterwards, and it's not like she can't nap longer - occasionally one nap is longer, even 1 hour very rarely.
All the sleep stuff I've read suggests she should be napping longer - which I'd love, as I have no chance to stop at the moment - but should I just leave it? Is this just her? For context, she's never had as much sleep in the day as suggested, even as a very new newborn she was very alert and wakeful.