Who else's baby is only taking ONE solid nap a day?

La

We do wake up fairly late, around 9 am and then I feed him and put him back down for another 1.5 hrs or so. But when when he wakes up and I put him back to sleep after an hour of awake time he takes a nap that is here and there (wakes up after 45 min, needs to be rocked back to sleep). And then when he does wake up around 3ish he can't take another nap! I'm lucky if he sleeps for 30 minutes. What the heck!?