Light sleeper baby

My 1.5 month old baby cant fall into good naps during daytime. Even with dark quiet room, swaddled, she at most nap once a good 2 hour nap, other than that it is so hard to put her down for any other day nap as she always wake up after 2-3 minutes put down in cot. She can sleep good 11-12 hours night time (including dreamfeed 2-3 times at night). I worry she gets over tired and lack of sleep for development due to this n indeed she gets quite fussy these days. Any mom has experience can share how to get baby to nap better? SOS.