Bedtimes?

SmittyPants

My LO is 4 weeks and we don't have a bedtime for her. She stays with us downstairs, usually sleeping in one of our arms, until we head up to bed which is usually around 10. When I said this to my mom, she said that we should be putting her down to sleep much sooner. 

Right now the baby sleeps in a cradle next to our bed. Once we transfer her to the crib in her room we certainly plan to have a set bedtime and routine, but my mom now has me thinking that we need to start doing that now. What does everyone else do? I don't think I'm ready to have her sleeping in another room unsupervised. I feel like she's still too little. On the other hand, I don't want her to develop bad sleep habits. 

Thoughts?