have been thinking about getting one of those hexagonal playpens that can also section of bits of a room and become a den later on. BUT just not sure if it will be too inhibiting for my 9 month old crawling DS. we have made our home as safe as we can (without going too mad) though feel like i am constantly moving him away from things that are unsafe that we cant do anything about. i wouldnt want him to be in it for long chunks of time, just 15 mins here and there when i need to get washing off line etc. its got a door so can leave open when im in the room. can see the pros but would be interested in anyones opinion who is against using them and why to help me make an ionformed decision. thanks x