She should be fine when you transition I had to do thus with my eldest let him carry on in the moses basket until he got too big for it... the issue is all of the space in the next to me and theyve been cramped up in mum for so long hence whybthey like the moses basket better it feels abit more familiar and closer to them
I left my little girl in the Moses basket to sleep till she was about 2 months old and couldn’t fit anymore, it was the only place she’d settle then when we went to the next to me. She was fine x