I am a co-sleeping single mum with a wriggly crawly little 9 month old. Recently I'm getting concerned about the possibility of him waking up and crawling off the side off the bed whilst I'm still snoozing. At the moment I have a load of bolsters and pillows blocking his side (plus a thick blanket on the floor just in case ) but he's starting to see this as a fun obstacle to clamber over. We have to share a room and there's not really room for a cot, there's already a travel cot in there that acts as a playpen during the day but he doesn't like sleeping in it. At night I get him to sleep in the bed, then transfer him to the travel cot til I go to bed, only if he wakes up he won't settle himself in the travel cot and starts playing. I was going to buy a Tomy bed guard but that seems to be more aimed at older children rolling out of bed. My house is rented so I can't get rid of the bed and the room shape doesn't work for having the bed against a wall. I really want to continue co-sleeping but other than attach a harness to the mattress I'm running out of ideas - please help!