Men's Cotton Pyjamas

Cotton is the natural choice for pyjamas you wear against your skin night after night. It is breathable, absorbs moisture and holds its shape through dozens of washes. Mariner Underwear has been cutting men's cotton pyjamas in France since 1967, working with combed cotton, mercerized cotton and poplin depending on the model. The result is nightwear that stays comfortable season after season.

Cotton Types: Combed Cotton, Brushed Cotton and Poplin

Not all cotton feels the same in a pyjama set. Combed cotton removes the shorter fibres before spinning, giving a smoother yarn that resists pilling. Most of the long pyjama sets use this material, either as cotton jersey or poplin weave.

Brushed cotton pajamas feature a slightly fuzzy surface that retains heat, making them an ideal choice for cozy autumn and winter nights. Mercerized cotton undergoes a treatment that enhances its strength and creates a satin-like finish. Men's mercerized cotton pajamas offer a cool feel and a silkier texture. Tightly woven from combed cotton, poplin retains its shape and lightness throughout the night. Flannel models also appear in the collection. Some use a cotton and polyester blend, so check individual product details if you need a pure cotton flannel pyjama set.

Long Pyjama Set Styles: Open-Front and V-Neck

Every pyjama set here is a full-length two-piece with a long cotton trouser and a long-sleeved top.

This pajama set features a fully button-front top, eliminating the need to pull it over your head. A chest pocket and two side pockets provide convenient storage. The trousers feature an elasticated waistband and a functional fly. It embodies the classic, elegant cut of men's cotton pajamas.

The V-neck pajama set beautifully frames the neckline. It is an ideal choice for those who find crew necks too tight. Mariner Underwear offers this style in combed cotton jersey and mercerized cotton, with striped or printed versions available in the current range. A crew-neck "jogging-style" set pairs a jacquard cotton jersey top with matching trousers for a comfortable, relaxed look.

Colours, Patterns and Nightwear Styles

The collection covers the classic patterns you expect from British men's nightwear. Stripes run in blue and white or nautical style. Checked and Scottish plaid patterns appear on the open-front poplin pyjama sets. Printed models include geometric motifs on navy or dark grounds. Plain colours round out the range.

The colour range across the sleepwear runs from navy and marine blue to petrole and anthracite. All colours run from size S to XXL. For the full range of nightwear including a dressing gown or matching loungewear, see the men's pyjamas collection.

Sizes and Fit

Men's cotton pyjamas should be worn with some room. Take your usual clothing size and go one size up if you fall between sizes. The elasticated waist on the trouser bottom adjusts for comfort. Sizes run from S to XXL.

If you want a pyjama trouser on its own to replace a worn-out bottom, the men's pyjama bottoms section has standalone cotton trouser options without buying a full set.

Washing and Care

Wash cotton pyjamas at 30 degrees, turned inside out. This protects the surface and keeps colours from fading. Avoid fabric softener on sleepwear worn against your skin. It builds up on the fabric and reduces breathability over time. Air-dry to keep the elasticated waistband in shape. For brushed cotton and flannel pyjama sets, avoiding softener is especially important because it flattens the surface texture.

Short Pyjamas, Lounge Wear and Summer Nightwear

This page covers long cotton pyjama sets. For summer nights or warmer rooms, Mariner Underwear also makes men's short pyjamas in lightweight cotton jersey, with short sleeves and shorts instead of a full trouser. Those are better suited to lounge wear at home on warmer evenings. A pair of cotton lounge trousers or a slipper completes the picture for a relaxed evening at home.

Designed in France Since 1967

Every pyjama set in this collection is designed in France. Seams sit flat against the skin. Button fastenings on the open-front jackets are reinforced. The elasticated waistbands keep their stretch after repeated washing. Alongside your cotton pyjamas, a dressing gown in the same range pairs well as cosy nightwear for the whole evening, from the shower to the bedroom.

Frequently Asked Questions

What cotton is used in Mariner Underwear men's cotton pyjamas?

Mariner Underwear uses combed cotton, brushed cotton, mercerized cotton and poplin depending on the model. Combed cotton removes short fibres for a smoother feel. Brushed cotton pyjamas are warmer and cosy for winter nights. Mercerized cotton adds strength and a slight sheen. Poplin is a tightly woven combed cotton that holds its structure through the night.

What is the difference between an open-front pyjama set and a V-neck pyjama set?

An open-front pyjama set has a jacket that buttons all the way down the front, easier to put on and take off in the night. A V-neck pyjama set has a closed jacket with a V-shaped neckline. Both come with a full-length cotton trouser. The open-front is the classic British pjs cut.

What sizes do Mariner Underwear cotton pyjamas come in?

Sizes run from S through to XXL. Pyjamas and nightwear are best worn with extra room, so go one size up if you are between sizes.

How should I wash men's cotton pyjamas?

Wash at 30 degrees, inside out, without fabric softener. Softener reduces breathability in cotton sleepwear over time. Air-dry to keep the waistband in good shape. The same applies to brushed cotton and flannel sets.

Do Mariner Underwear men's cotton pyjamas come in short versions?

The pyjama sets on this page are all long. Mariner Underwear also makes short cotton pyjamas in lightweight jersey for warmer nights. You can find those in the men's short pyjamas section.

Can I buy pyjama bottoms separately?

Yes. Separate pyjama trousers are available in the men's pyjama bottoms section, made from the same cotton materials as the full sets.

Are Mariner Underwear pyjamas designed in France?

Yes. All cotton pyjamas in this collection are designed in France since 1967. Consistent quality across every size, with the same attention to seams, fastenings and fabric finish throughout the nightwear range.