Yes, I'm going to mention this first and foremost. Sleep is going to be totally different once having your baby. Gone are the days of sleeping when and how you'd like. That may sound harsh, but it's best to be blunt and upfront about it. Parenting is beautiful at removing any selfishness in our lives, ha. 

Most babies are up at night and sleep during the day when they are newborns. Why? Because think about it. They were rocked to sleep during the day in the womb as you moved about all day. Then at night when you were trying to sleep, they were awake and thought it was playtime! So they tend to follow that pattern for a bit once they're born. 

Now it is totally up to your and your spouse how you want to do sleeping arrangements. But I will share from my own experiences. With my first baby, I followed all the latest books/advice and trained him to sleep in a crib. Actually, I did that with my first four kiddos. So many long hours of bouncing, rocking, carefully placing them all swaddled into the crib without waking them, like trying to not set off a landmine. Oy. I lost so much sleep, went through so much frustration, and it was not too pleasant. FINALLY with baby #5, I had had it and just plopped her in the bed with me. Good gravy, WHY didn't I just do that from the beginning?! God given natural mama instincts should trump the latest books/advice/trends every time. Period. It was beautiful how much sleep I got! It was so easy to just nurse and fall back asleep. Pure bliss. Baby was content and happy being next to mama and could nurse on demand, and mama got a full night's sleep! 

So my advice is to have grace for yourself and your baby. Being a mama has a never ending learning curve. All your baby wants is you! Your physical touch, your comfort....you.