How do you dress or cover your babies at night? I put on a sleeveless…

How do you dress or cover your babies at night? I put on a sleeveless onesie before bed because it's stuffy, and by morning it gets cold, the baby is freezing, wakes up. I put him next to me and we sleep in a hug. I'm afraid to cover him with a blanket or sheet because it covers his face. If I change clothes for him at night, he will wake up. What should I do? ?