My LO is 8 months old, and I've always kept toys out of the crib because I want him to associate his crib as a place of sleeping, not playing. However, even without toys in the crib, he still plays around instead of napping, even when I know he's tired! So, do you have any toys in the crib, and does it distract your LO from sleeping? I admit, it's sometimes nice to find him waking up from a nap happily playing by himself though.