Lark Cotton Plain Duvet Cover Set - Navy

The Lark duvet cover set is made from 100% cotton in a double-layer muslin weave, which is what gives the fabric its soft, crinkled texture. That double layer is the whole character of the set: instead of a flat, smooth finish, you get a gently gathered surface with a cloud-like handle that only softens further with washing. The deep navy reads almost like a very dark ink in the fold shadows and lifts to a warmer blue where the light catches it, so the plain colour stays interesting up close. The set is offered in four sizes, from single through to super king, so there is a fit for a child's room, a spare bed or a main bedroom.

This is a set that suits a relaxed, pared-back bedroom rather than a formally pressed one, because the crinkle finish is meant to look lived in. It sits comfortably against wood headboards, natural linen curtains and the muted, earthy palette shown here, and the dark navy is easy to pair with striped or plain pillowcases if you want to build the bed up in layers. Cotton is breathable, so the fabric helps you stay cool through summer and holds warmth in winter, which makes it a sensible year-round choice for anyone who runs hot or cold in bed.

The cover closes with buttons rather than poppers or a hidden opening, and the wooden buttons on the pillowcases are part of the look as much as the fastening, keeping the duvet in place through the night. Because it is pure cotton, it washes and wears predictably and takes a warm wash well; the crinkle texture also means it is forgiving and does not demand ironing to look right. Follow the care label sewn into the item for wash temperatures. The single includes one pillowcase and every larger size includes two, so check the size you are ordering for the pillowcase count you expect.

What is muslin cotton and why does it feel different?

Muslin here means a double layer of lightweight cotton woven together, which creates the soft, gently crinkled texture you can see in the photographs and feel in the hand.

Will it keep me warm in winter and cool in summer?

Cotton is breathable, so it lets air move through the fabric. That helps carry heat away in summer while still holding warmth against you through colder months.

How does the cover fasten?

The set uses a button closure rather than poppers or a zip, which keeps your duvet held in position through the night and adds to the relaxed, natural look.

How many pillowcases come with each size?

The single size includes one pillowcase, and the double, king and super king sizes each include two pillowcases, so order by the size that matches your bed.

Does the crinkle finish need ironing?

The texture is meant to look relaxed and slightly gathered, so the fabric is forgiving and does not need pressing to look right straight from the wash.

Is this a solid colour or a pattern?

It is a plain, single-colour navy with no print, so the interest comes from the crinkled texture and the way light falls across the folds of the fabric.