So, the entire concept of this bassinet is amazing. Who wouldn’t want their newborn right beside their bed, with mesh sides so you can always see them/hear them breathing. Few problems… for starters the bassinet mattress is so hard and uncomfortable I have yet to hear of a baby actually liking it and due to how hard it is it can cause baby’s head to flatten if they lay on the same side. 
The Halo company offers a newborn nest insert which I highly recommend buying because it makes their space smaller and more cozy like when they were in the womb. 
BUT it’s still uncomfortable and hard.
My baby is two months old now and will sleep 4-6 hours straight in her crib with comfortable (still safe) crib mattress, and I’m honestly lucky if I get 2 hours when she’s in the Halo bassinet. It’s unfortunate because I really wanted to love this product.