My LO is 6 months old. We swaddled until 4 months and then transitioned to sleep sacks. He's starting to try and pull up and crawl, so I went and bought pajamas with the thought that I don't want him getting tangled up or the sleep sack hampering his movement.

Well, the pajamas were a total bust. He woke up 3 times in one hour screaming, until I put him back in his sleep sack, and then slept like a log afterward. So here's my question: If you used sleep sacks, when did you make the transition to pajamas? Or was your LO able to pull up and crawl around with the sleep sack on?

I read another thing I could try is cutting out the bottom seam and putting in some elastic, which I might try in a few weeks.