A fitted blanket fits over a 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. Children and adults alike can stay warm at night as their blankets cannot fall away or off of them while sleeping. The fitted blanket may further include an opening and closing mechanism to allow for easy entry and exit, rather than having to untuck the blanket, as is the case with conventional blankets. The opening and closing mechanism may also provide an easy way to make the bed. The fitted nature of the blanket prevents blanket slippage or movement. The blanket may further include a cut-out region for pillow placement. The blanket can also include glow-in-the-dark elements or illuminated elements to light up the blanket at night.