Sleeping with Comfort Silkie?

Sc

My son will be 7 months next week. He has a Comfort Silkie which is about 12"×10" big. The company says they are breathable, but to me, not as much as a swaddle blanket. My son can army crawl and pull things off of his face. Do you think it's safe for him to sleep with the Comfort Silkie blanket?