Livi is just over two months and has been cosleeping with us since she was born. Our bedroom has three outer walls, and even though it says it's 70 degrees, it feels much colder. I have been putting Livi in socks, a footed sleeper, and sometimes a onesie, or a gown and a sleep sack. Last night I noticed that the side of her face that isn't on the bed was very cool to the touch. Her head was warm, but her cheek and her ear were cool. Do I need to put more layers on her, or is that normal? TIA from a new mama!