Bassinet vs crib

My 3 week old has not been sleeping good at all (if any) in her halo Bassinest.

Today I laid her in her crib for a nap just barely wrapped up in a blanket and she slept for a solid 2 hours, with her hands up by her head... which she seems to prefer.

How awful of a mom would I be if I let her sleep like that all the time, and not swaddle her? I know it’s a risk for SIDS with the loose blanket... but mamas gotta sleep!