Sleep wear

Mama D • JDH 💙🌈 GAH #boymama

What does everyone’s little ones sleep in? My little guy has slept in jammies and that’s it for several months. We stopped swaddling around 4 months. It’s hot here now so we have the AC on and I get cold so I assume he’s probably chilly too but safe sleep says no blankets. Should I get him a sleep sack? If so what kind? I want arms and hands free.