We really want our baby to be able to develop all skills he needs to and are planning a play-space for him to do so. What do you recommend we do to ensure the space is safe enough to jump, hop and climb in etc?

My baby has mastered getting up to sit and she knows how to crawl. However, now we would like to support her next milestone: pulling up to stand. We don't want to force it before she is ready. Are there any signs we can look out for that might indicate that she is ready to pull up and stand?