One month old sleeping 12 hours straight

Diana • I'm 23 yrs old been married for a year to my best friend we been together for 5 years! we have a beautiful baby boy.
Is it normal for my one month old to sleep for 10 to 12 hours straight? Is this too much? I have never seen a baby sleep this long. He has fell asleep around 3 pm and it is now 630 am and he is still asleep. I need advice since I'm a ftm.