(8 months) We have been setting Emily on the floor by herself to sit, but we always had something next to her to help her steady herself. Obviously, she is more comfortable than we thought. Last week, as she was crawling across the floor, we looked away and when we looked back at her, she had pulled herself up to a sitting position. Since then it has been a lot of fun to watch Emily as she has been exploring the world on her own with crawling and sitting.