We have an active 10 month old, who sleeps soundly, but tends to roll a lot thereby hitting his head against the crib railings. Having a small apartment, we don't have much place for a mattress on the floor, or a large sized crib. Co-sleeping is one option we consider, but we do find ourselves on either edge of the bed, in fear of trampling over the baby.

Does any one have any ideas on compact furniture options that can be used, which don't pose as a risk to a rolling infant? He isn't walking yet, so bed railings are not an option, since he can stand and topple over them.