Although we are not associated with Simmons in any way, SimmonsCrib.net covers all angles of the sleeping requirements of newborns and small babies. Newborns require a lot of sleep: 10-18 hours per day. To get the most out of their sleep, be sure to give them their comfort and support: Simmons Crib – firm, tight-fitting mattress, Mattress – quality baby mattress that is firm and supportive, Ample support for the mattress – bedding can’t be easily dislodged. Visit the official Simmons site for more info