Parents who use black out curtains…

Did blackout curtains significantly help your baby’s sleep? Are they able to sleep in other places without it being dark? I’m considering black out curtains but nervous that it will ruin her ability to sleep while we are out or not being able to sleep if it’s not dark.

At night she transfers into the crib just fine but during the day if we even attempt to transfer, it ruins the whole nap.

I didn’t want to rely on blackout curtains because I really wanted her to associate dark + sleep sack with bedtime but I’m hitting a wall with post partum and I really need some me time. Transferring for even one nap would really help me get a work out in or just rest for once.