Men's Pyjama Bottoms

Men's pyjama bottoms from Mariner Underwear are cut in 100% cotton and designed for sleep or lounging at home. The range covers all seasons: lightweight jersey cotton for mild nights, woven poplin for the colder months. Every product has an elasticated waistband and a straight-leg cut, available from size S to XXL.

Wear them as standalone PJ bottoms or pair them with a top from our men's pyjamas collection to build a complete nightwear set.

Cotton Fabrics: Choosing the Right Option

Mariner Underwear men's pyjama bottoms use three main fabrics. Each suits a different season and room temperature.

Jersey cotton is the most breathable option and the most relaxed in feel. It is soft, easy to wash at 30 degrees, and dries quickly at room temperature. Most pyjama designs in the range use this fabric. If you find standard jersey too thin for cooler nights, the mercerisé cotton jersey is a comfortable upgrade: same softness, slightly smoother finish, better long-term resistance after many washes.

Woven cotton poplin is a warmer, more structured fabric. The tight weave holds heat better than jersey, making it a cosy choice for autumn and winter. The checked pyjama bottoms in the range use poplin, available in classic navy and blue colour combinations. Some styles also feature a jersey top combined with a brushed cotton panel for extra warmth on colder nights.

Patterns, Prints, and Colour Options

The design choices across the Mariner Underwear men's pyjama bottoms collection cover three main pattern directions.

Plain styles in navy, petrol, or blue are the most versatile and discreet option. Striped pyjama bottoms follow the classic nightwear pattern and come in several colour combinations. Checked pyjama bottoms in poplin have the most traditional feel and are the warmest product in the range.

The collection also includes homewear trousers in printed or ecossais poplin patterns. These share the same straight cut and elasticated waist but suit a morning lounge context more than a strictly sleep context. You can mix and match pieces across the range, or complete the look with a dressing gown from the men's loungewear edit.

Fit, Size, and Waistband Details

Every pair of Mariner Underwear pyjama bottoms has a relaxed, straight-leg fit designed for comfortable sleep and lounge wear. There are no slim or tapered options in this range.

Sizes run from S (size 2) to XXL (size 6), with select styles extending to XXXL (size 7). The elasticated waistband holds without a drawstring or external fastening. It sits at a natural height and keeps its shape through many washes. If you are between sizes, choose the larger option for more comfort at night.

How to Wear and Style Pyjama Bottoms

Men's pyjama bottoms from Mariner Underwear work in two main contexts. For sleep, pair them with a matching cotton pyjama top to form a complete nightwear set. The breathable cotton fabric keeps you comfortable through the night. For home lounge wear, the straight-leg cut and neutral colour palette make these PJ bottoms easy to wear through the morning.

You can add a dressing gown on top for a relaxed morning routine. Our men's lounge pants offer similar products in a slightly different fabrication for a more casual lounge style. Our men's loungewear collection covers all coordinating pieces including dressing gowns and tops.

Washing and Care Instructions

Wash at 30 degrees, inside out. Do not use fabric softener on cotton nightwear, as it reduces breathability over time. Air dry on a hanger rather than tumble dry to keep the elastic in the waistband and the seams in good condition. Jersey styles dry quickly at room temperature. Poplin takes a little longer but holds its structure well.

Frequently Asked Questions

What fabrics are Mariner Underwear men's pyjama bottoms made from?

The range uses jersey cotton, mercerisé cotton jersey, and woven cotton poplin. Some products add brushed cotton panels for extra warmth in winter. All fabrics are 100% cotton or cotton-dominant blends.

Can I buy men's pajama bottoms on their own, without the matching top?

Yes. Mariner offers a line of trousers sold separately. You can pair them with a top from the men's pajama collection or wear them on their own.

What is the difference between checked and striped pyjama bottoms?

Checked pyjama bottoms use woven poplin with a grid pattern, giving a more structured, warmer fabric. Striped pyjama bottoms use jersey cotton for a softer, more breathable feel. The checked styles are the better winter option. Striped styles work across all seasons.

Which men's pyjama bottoms are warmest for cold winter nights?

Choose the checked poplin styles or products with a brushed cotton panel. These are warmer than plain jersey and stay cosy in a cold room. The homewear trousers in ecossais poplin are also a good option for winter mornings at home.

What sizes do Mariner Underwear pyjama bottoms come in?

Sizes range from S (size 2) to XXL (size 6), with select products available in XXXL (size 7). The relaxed fit means you can take your standard size or go one size up for extra comfort.

How should I wash men's pyjama bottoms to keep them in good condition?

Wash at 30 degrees, inside out, without fabric softener. Air dry rather than tumble dry. Jersey styles dry quickly at room temperature. Poplin styles hold their shape well after drying.

Can I pair men's pyjama bottoms with a dressing gown?

Yes. The straight cut and neutral colours work well with a dressing gown from the men's loungewear collection. You can also mix these pyjama bottoms with coordinating pieces from the broader men's nightwear range to build a complete lounge wardrobe.