My little guy is 14 months. He sleeps wearing wither a sleep sack, fleece footie pajamas, or pajama shirt and pants. He has a couple of blankets and a pillow in his crib.
Leon sleeps in footie pajamas. He also has cotton pajamas. He also sleeps with blankets. They are small thin ones. Alot of time he covers up with one. Surrounds himself like a nest with the rest.
She's 15 months
My little one sleeps in a onesie with fleece footie pajamas. She sleeps in my bed so I make sure she's warm
She wears either cotton footie PJs or no foot ones - we don’t really choose that based on temperature. Then a cotton sleep sack. House is usually around 68 and her fan is on low.