Yeah, you'd have to lift your baby up a bit to place him back into the sleeper (the sides are about 4 inches or so tall). I've had a lot of side pain from my c-section, so I can't nurse on my side right now anyway. But, I can tell you that Kayden would only sleep for about 15 minutes in her bassinette right next to our bed, but she sleeps beautifully in the sleeper. I don't know if it's because she can open her eyes and see us right next to her, or if it's because she can smell me more, or if it's just cozier because it's smaller. But, that was the best sleep I've gotten since she was born!