Sleeping with a Blanket

Hey Mommas how many of you are letting your LO sleep with a blanket (for covers)? We are still doing the sleep sac at night but using a blanket for naps. If you do a blanket at night does your little one stay under it? Get tangled? Just curious how it’s going for you. Our naps with blankets are going fine. She doesn’t move around that much for her naps. Night sleep is a different story. Haven’t fully switched mainly because I’m worried she’ll get cold at night.