Abstract: A fitted bed sheet corresponding in size and shape to a top surface of a mattress, the bed sheet having an upper peripheral edge, a lower peripheral edge disposed below the upper peripheral edge, a channel positioned about the lower peripheral edge, at least one adjustable elastic cord disposed within the channel, and one or more locking mechanisms associated with the adjustable elastic cord to secure the adjustable elastic cord at a selected length. A partially fitted bed sheet has two corners at a first end and an opening at a second end, the two corners having at least one elastic cord associated therewith and being configured to partially secure the bed sheet to a mattress. A blanket or comforter is partially fitted to a mattress with an elastic fabric component having an adjustable elastic cord disposed about a lower peripheral edge thereof.