Babies are made to sleep with their mother (just like other primates do). Until the early 20th century, bed sharing was the norm in Western countries (and still is in many places today).
You'll get more sleep. Assuming you’re breastfeeding, your baby will stir and you can lean over and feed from a side-lying position, still in bed. Then you can both easily go back to sleep.
Co sleeping helps with breastfeeding success. Co sleeping babies spend more time nursing at night, and the extra suckling helps to ramp up milk supply in mothers. Win-win!
Do not try to rest with your baby on a sofa or recliner in an effort to stay awake. Babies can become entrapped in the cushions.It is safer to fall asleep with baby on a flat surface (like a firm mattress).