King sheets are made for a mattress 76 inches wide by 80 inches long. Viscosoft Organic Cotton King Sheets fit that footprint and add an 18 inch pocket on the fitted sheet, which is the second measurement that decides whether a sheet stays on a thick bed. The Sleep Foundation lists the same 76 by 80, and notes a king is the widest standard mattress sold.

A king fitted sheet covers a surface 76 inches wide by 80 inches long, then wraps down the sides by whatever its pocket depth allows. Viscosoft Organic Cotton King Sheets use an 18 inch pocket with elastic running the entire way around, which matters more on a king than any other size because the sheet has roughly 312 inches of edge to hold. Anything else on the mattress counts toward those 18 inches, including a waterproof protector.

A king flat sheet is cut well past the 76 by 80 inch mattress beneath it, so there is enough fabric to tuck along both sides and the foot of the bed. Every set of Viscosoft Organic Cotton King Sheets includes one, and it is the layer that takes the nightly contact instead of the comforter or duvet above it. The exact finished measurements are not published, so ask before ordering if you need a precise figure.

No. Viscosoft Organic Cotton King Sheets are cut for a 76 inch width, while a queen mattress is 60 inches across, so a queen fitted sheet falls 16 inches short and will not reach the corners. Both beds are 80 inches long, as the Sleep Foundation sets out, so width alone rules it out, and a queen bed needs its own queen sized bedding.

Measure the mattress first, then match the pocket to it. Fitted sheets come in standard pockets for mattresses up to about 12 inches, deep pockets for roughly 13 to 16 inches, and extra deep for 17 and above. Viscosoft Organic Cotton King Sheets have an 18 inch pocket, which covers the 12 to 16 inch range most modern mattresses fall into, with room left for a plush topper.

In most cases, yes. Viscosoft Organic Cotton King Sheets have an 18 inch pocket, so a 14 inch mattress leaves 4 inches for a topper and a 12 inch mattress leaves 6. Add every layer together before ordering if your bed already sits tall, since a protector and a thick topper together can use up the difference.

A set of Viscosoft Organic Cotton King Sheets includes one fitted sheet, one top sheet, and two pillowcases. The pillowcases close at the end rather than staying open, so the pillow does not work its way out overnight. King beds are often made up with king pillows rather than standard ones, so check the pillowcase size listed at checkout if that matters for your setup.

A little warmer than percale, and it is worth saying plainly. Viscosoft Organic Cotton King Sheets use a sateen weave that passes each thread under one and over three, which puts more thread on the surface for a smoother feel but leaves the fabric denser than a crisp percale. If you run warm, a lighter layer on top is easier to adjust than changing the sheet, so a throw blanket gives you more control.