As you may know, I don't 100% agree with age guidelines - why is something not OK one day but OK the next because of an age? - but for sleeping a baby should not have something that could smother the baby. So if the baby can kick off a doona then that's no longer dangerous. Only you know the capability of your baby. If a baby can pull something over the head and not wake to take it off, then it's a no. So DS only has a sleeping bag as covers that are tucked in he can free and pull over his head. I have put sheets, blankets and quilts over him when it's cold and he's ok with them, just have to keep an eye on him - I sleep with him usually so that's not an issue.

Big bed... DS is already in a cot bed! When he's sleeping through, not rolling around in his sleep so much and able to get himself out of bed then I'll take the cot bits down and he'll be in a big bed, so that may be from 10 months I guess but I doubt it would be that early.