Im a second time mom and did not have an issue with my first sleeping in a bassinet (flat service). My second is only 15 days old and I cannot get him to sleep longer than ten minutes in his bassinet. I Remebered I stored the Fisher Price Rock-n-Play I had used with my first occasionally. So my newborn is sleeping great in it. On his second week appointment his pediatrician made it a point that he should really be sleeping in a flat service. I really didn't ask why I just said "ok". So now I've been thinking for the past couple of days if it dangerous for some reason? I will follow up with his pediatrician I just want to get input. I did Google and have read reviews and I don't really see anything on risk of SIDS.

BFP #1 12/23/13 MMC 01/24/14 @ 9w5days

Re: Sleeping in flat surface vs incline
DD1 born 5/24/10.
Missed M/C at 14 wks Feb 2012.
DD2 born 5/14/13.
Missed M/C at 9 wks July 2015.
Cary is sleeping in a Rock n'Play for now because he is still majorly stuffed up from delivery. In the hospital, the nurses even put his bassinet on an incline. I don't plan on this being a forever solution because there is concern that the transition to a crib is harder from a Rock n'Play, but I don't agree with the studies that say the Rock n'Play is dangerous. If you read closely, the babies were in them for 16 hours a day!
BFP #1 12/23/13 MMC 01/24/14 @ 9w5days
I have my daughters bassinet very slightly inclined with a folded blanket underneath. She might not even need that, though.
10 hours does seem like a lot. If you decide to keep using it for sleep, I'd advise you only to use that as a sleeping solution while you're asleep. If he's napping during the day you should probably be wearing him or holding him to reduce the number of hours in the RNP
DD #2: May 2020
Baby #3: EDD May 2023; MC October 2022
BFP #1 12/23/13 MMC 01/24/14 @ 9w5days
BFP #1 12/23/13 MMC 01/24/14 @ 9w5days
BFP #1 12/23/13 MMC 01/24/14 @ 9w5days
DD #2: May 2020
Baby #3: EDD May 2023; MC October 2022
BFP #1 12/23/13 MMC 01/24/14 @ 9w5days
I was super careful with our first regarding bed sharing when he was an infant. He still ended up in our bed after he turned 1. This momma really needed her sleep. So I'm not too particular about #2.
BFP #1 12/23/13 MMC 01/24/14 @ 9w5days
BFP #1 12/23/13 MMC 01/24/14 @ 9w5days
BFP #1 12/23/13 MMC 01/24/14 @ 9w5days