@Olivia she’s only 7lbs and 3 weeks old so too little at the moment as most of the sleep sacks are from 8lbs… I have a few of those which I will use when she’s a little bigger but just struggling with a solution at the moment 😩
You can get thick sleep suits which have a tog, maybe try them x
Get the halo swaddles. You can wrap your baby three ways with it and one of them is with arms out. My daughter has been using them since birth and also likes her arms free
You can get newborn sleeveless sleep sacks. My LO was born 7lbs and has been in sleep sacks each night since getting home. M&S, tommee tippee and a few other brands do smaller newborn sleep sacks suitable for smaller babies
The warmest sleepers I ever found were 100% polyester ones from Disney baby they are super fluffy and keep baby super warm🥰
Tesco/asda/sainsburys have sleepsuits with 2.5tog in them, so no need for blankets xx
We did long sleeve shirts and sleeveless sleep sacks so the arms are covered but free and the legs can still kick around but covered