My baby is 5 weeks old and sleeps really well at night.

The issue I'm having is daytime naps. She used to have no problem but suddenly she fights her sleep SO much. And I mean like literally fights it. Flails her arms and legs, shakes her head back and forth, cries and fusses for no reason. This happens even if I'm holding her. I've been trying to not swaddle for day time naps but I was desperate enough today to swaddle her and it didn't really help at all. She still just fussed and fought for so long.

I've got her in the infant carrier now which she normally loves but she's still fighting. I'm pretty sure now she's just overtired and that's not helping.

Any tips for easy daytime napping without the battles?