A fitted blanket fits over the mattress and secures underneath to prevent the blanket from moving off the user while sleeping in bed. The blanket can include an elastic material on at least the underside corner edges thereof to help secure the blanket to the mattress. The fitted blanket includes an opening to allow for easy entry and exit, rather than having to untuck the blanket. The opening may also provide an easy way to make the bed. The opening may simply be designed like a cut in the blanket and may or may not include closing mechanisms. The fitted nature of the blanket prevents blanket slippage or movement. The blanket may further include a cut-out region or an opening along at least a portion of the head end for pillow placement. The blanket can also include glow-in-the-dark elements or illuminated elements to light up the blanket at night.