Question: Makeshift baby crib.
Options:
Fashion a baby crib using an old dresser drawer filled with something cushy enough to make it comfy for the baby ,but safe so that the baby can't get it's face covered.
Use a cardboard microwave oven box and cover all edges with fabric so the baby can't get cut.    Line it with soft material. Add blanket or sheet over the top and secure so it can't cover the baby.
Answer: Fashion a baby crib using an old dresser drawer filled with something cushy enough to make it comfy for the baby ,but safe so that the baby can't get it's face covered.