No, and this is the most common sizing mistake people make. Our Organic Cotton Twin Sheets are cut for a standard twin mattress, which the Sleep Foundation lists at 38 by 75 inches, while a Twin XL is the same width but 5 inches longer. The same sheets come in Twin XL, which is the size to look for across the whole bed if you are shopping for a dorm, right down to twin XL comforters.

In most cases, yes. Our Organic Cotton Twin Sheets have 18 inch pockets with elastic all the way around, which leaves room for a standard twin mattress with a topper added on top. Measure the full stack before ordering if your bed is already tall, since 18 inches is the limit, and a deep pocket protector under the sheet adds a little height of its own.

A set of Organic Cotton Twin Sheets includes one fitted sheet, one top sheet, and one pillowcase. Worth knowing before you order: the Twin and Twin XL sets come with a single pillowcase, while the larger sizes include two, so pick up a spare if you keep two pillows on a twin bed. You can see the rest of the range in the bedding collection.

300 is the right range for a sateen weave, and higher is not automatically better. Viscosoft Organic Cotton Twin Sheets use 300 thread count long-staple cotton, and sleep researchers at the Sleep Foundation put sateen in the 300 to 600 range while noting that thread count alone does not tell you much. Plenty of 800 and 1000 count sheets reach that number by twisting thin threads together, which adds weight without adding softness, and the 300 range is what most hotels specify.

A little warmer than percale, and it is worth saying plainly. Viscosoft Organic Cotton Twin Sheets use a sateen weave, which puts more thread on the surface for a smoother feel but makes 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 than a heavy comforter.

About once a week, according to the Sleep Foundation. Viscosoft Organic Cotton Twin Sheets handle that easily on a cold, gentle cycle, and they can be line dried or tumble dried on low. Putting a waterproof protector under the sheet keeps the mattress itself out of the laundry rotation, which matters most on a kid's bed.

Yes, and it is one of the better uses for them. Viscosoft Organic Cotton Twin Sheets are made from organic cotton grown without the chemicals used in regular farming, which is worth having against a child's skin, and they machine wash easily for the nights when that gets tested. Pair them with a washable twin blanket and the whole bed is quick to strip and remake.

Match the pillow to how the sleeper lies, not to the sheets. Viscosoft Organic Cotton Twin Sheets come with a standard pillowcase, so any standard pillow fits, and the choice comes down to loft: side sleepers usually need a higher pillow than back or stomach sleepers. Our guide to choosing the right pillow height walks through how to work out which one suits you.