My DS is 8 months old, and he is trying his hardest to crawl, which is brilliant, until it coed to bed time! Usually I put him down to sleep and he's out within 5 minutes or babbling, but now he keeps rolling on to his tummy, then getting stressed out, and he hasn't yet mastered how to roll back on to his back. We had to rock him to sleep last night because he refused to stop rolling on to his tummy! 
He also keeps getting his legs stuck between the bars.
Anyone been through the same?!
Thanks 