King Fitted Sheets

King Fitted Sheets help complete your bedding setup with a comfortable fit for your king-size mattress. Explore options at Mattress Firm to find sheets that suit your bedroom, personal style and sleep routine.

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Sleepy's Deluxe Cool Stretch Sheet Set

Starting at

$179⁹⁹

Temperature
Allergies

Save $150 when you bundle¹⁰.

Sleepy's Signature Flannel Sheet Set

Starting at

$139⁹⁹

Tempur-Pedic TEMPUR-Protect Breeze Mattress Protector

806

Starting at

$309⁰⁰

King fitted sheets are designed to fit standard king mattresses, which typically measure 76 inches wide by 80 inches long. A properly sized fitted sheet should stretch smoothly across the mattress surface, stay tucked beneath the corners and resist slipping during the night. Before choosing a king sheet set, measure your mattress height, including any mattress topper or pad, to find the right pocket depth. Standard-pocket king fitted sheets work well for many mattresses, while deep-pocket king fitted sheets provide extra room for taller mattresses and layered bedding. Be sure to distinguish a standard king from a California king, which is narrower and longer at approximately 72 inches by 84 inches, since the two sizes are not interchangeable. The best king fitted sheets combine a secure fit with a comfortable feel and durable construction. Cotton king sheets offer breathable, familiar comfort, while brushed microfiber sheets provide a smooth feel and easy-care convenience. Look for features such as elastic edging, reinforced seams and a generous pocket depth to help the sheet remain in place. Washing king fitted sheets according to the care label, avoiding excessive heat and folding them fully dry can help preserve their softness and shape. Mattress Firm offers king bedding in a range of colors, materials and styles, making it easier to find fitted sheets that complement your bedroom while helping you create a more comfortable sleep space.

What is a king fitted sheet? + -

A king fitted sheet is designed with elasticized edges and corners that wrap around a king mattress. Its fitted construction creates a smooth base layer for bedding.

What materials are king fitted sheets made from? + -

King fitted sheets are commonly made from cotton, microfiber, linen, bamboo-derived rayon or blends. Each material offers a different feel, texture and care routine.

How should I wash a king fitted sheet? + -

Check the care label before washing. In general, machine wash sheets with like colors using a gentle or regular cycle, then tumble dry on low or follow the recommended drying instructions.

How can I keep a king fitted sheet smooth? + -

Place each corner fully around the mattress, making sure the elastic edge is evenly positioned. Removing the sheet promptly from the dryer and folding or placing it on the bed can also help reduce wrinkles.

What is the difference between a king fitted sheet and a flat sheet? + -

A fitted sheet has elasticized corners that wrap around the mattress, while a flat sheet is a rectangular layer without fitted corners. A fitted sheet is typically used as the bottom sheet in a bedding set.