Abstract: A fitted bed sheet has a pair of roll guards mounted thereon to prevent a toddler or other person from rolling out of bed. Each roll guard is removably disposed in a slip cover mounted on the sheet by a flexible strip of material, which allows each roll guard to move between a first position atop the sheet and a second position beside the sheet with the roll guard hanging from the flexible strip. Each roll guard is securable in the raised position by the linking of fastener strips having hook and loop fasteners mounted on the slip cover and fabric loops mounted on the sheet. Each roll guard is removably mounted to the sheet via a zipper between the sheet and the flexible strip of material mounted on the slip cover. A plurality of elastic straps is mounted axially on the bottom of the sheet to help secure the sheet on a mattress.