What is Fitted sheets?

Alyssa Home Bed sheets come in two main varieties: flat and fitted. A flat sheet is simply a rectangular sheet of cloth, while a fitted sheet has its four corners, and sometimes two or four sides, fitted with elastic, to be used only as a bottom sheet.
Range of Fitted sheet?
Our range of fitted sheets come in a variety of colorways and feature a 7-year guarantee. Our fitted sheeting is easy to fit, with elasticated hems meaning changing your bed is a quick and easy job. With thread counts of 200; sheets feel soft and smooth to the touch. All our sheets come in the following sizes: single, double, king and super king fitted sheets. Our sheets also feature a blend of cotton and polyester ensuring a quick drying time, along with easy ironing.
Key features
The polyester/cotton blend is easy to care for since the fabric is less liable to shrink and crease.
Fits mattresses with a thickness up to 10" since the fiber sheet has elastic edging.

Good to know
120 thread count.
Thread count indicates the number of threads per square inch of Fabric Bed Sheets . The higher the thread count the more densely woven the fabric.
Care instructions
Machine wash, hot, normal cycle.
Do not bleach.
Tumble dry, medium, normal cycle.
Iron, low.
Do not dry clean.
People & Planet
Renewable material (cotton).
No optical brightener has been used.
Non-chlorine bleach.
Why we like it:
Looking for easy-care and non-shrink bed textiles that resist wrinkling? Then this blend of polyester and sustainable grown cotton might be just the thing for you.This Soft & Cozy Easy Care Deluxe Microfiber Sheet Set features sheets that are made of luxurious brushed microfiber. Each set includes a flat sheet, a fitted sheet, and two pillowcases, except the twin set that has one pillowcase.

It's much different from other bed sheets and much reliable.