Hey, first time posting here so please forgive if this has been covered a million times before 
We have a newborn, 2 days old, back at home and she sleeps in a Next2Me at the side of the bed.
When I put her down to sleep I always do so on her back but almost immediately she rolls onto her side, I've put her on her back again but this doesn't last anymore than a minute.
The guidelines say they should sleep on their back but she doesn't seem to want to
Is this an issue or a fairly common thing? Just want to make sure she's sleeping in the safest way possible