Best Flannel Mens Pajama Bottoms in 2026

GREAT FIT: Our plaid lounge pants come in S-XXXL to fit most sizes and are fitted with a twill drawstring to give you a custom fit.

LOUNGE IN STYLE: Treat your downtime to a classic look with these plaid pajama pants for men. We've coupled the timeless pattern with a choice of eye-catching color to complement any taste.

DESIGN: These pajamas for men are carefully made to ensure durability. Everything from the stitching to the hem lining is masterfully done, and the PJ pants handle well in the wash without losing shape.

Soft and Warm PJs: These comfy men’s pajama bottoms are perfect for lounging or sleeping. Made from ultra-soft lightweight 100% polyester micro fleece, these pajama pants for men feel smooth against the skin and keep you warm & cozy on winter nights, with moisture wicking properties to keep you comfortable all night. Mens pj pants have never felt this good!

Functionality: Pajama pants for men with two deep pockets to hold your phone or keys, and a fully functioning button fly, these mens lounge pants have the thoughtful design details to make these your go to sleepwear pants. You'll never lose your phone, wallet, or keys with this mens pajamas set of 3 mens lounge pants with pockets.

Great Fit: These plaid pj pants come in XS-XXL to fit most teen and Men’s sizes regular to tall and are fitted with an elastic waist and added twill drawstring and to give you a custom fit. The loose-fitting design of these warm mens pajama pants makes for unrestricted movement all day or night. The relaxed fit has longer inseams proportioned by size for a better fit as mens pj bottoms. Note- waist size adjustable with drawstring.

An Amazon brand

Relaxed fit for comfort while sleeping

Soft-yet-sturdy midweight classic flannel, with an instantly comforting, cozy feel

COMFORTABLE PAJAMA PANTS - Lounge around in absolute comfort with these pajama bottoms made from 100% cotton flannel. Feels soft and light against skin.

ADJUSTABLE FIT - Fit is one of the most overlooked things when it comes to selecting the right pair of sleepwear/loungewear! An elastic waistband ensures a nice and snug fit without being too uncomfortable. Make sure these pants don't sag down by tying the drawstrings for a more personalized fit that's just right for you.

PERFECT FOR SLEEPING AND LOUNGING - If you're looking for some sleeping attire that has class then you've come to the right place. The CYZ pajama pants are soft, and extremely comfortable so you always get a good night's rest. These bottoms are also great as casual loungewear when you want to relax and do nothing all day long.

Pack of 2

Relaxed sleep pant featuring elastic waistband with drawstring

Perfect for sleeping, lounging, or relaxing

Waist sizing; XL=40-42".

Single-button fly; elastic/drawstring waist

Front slant pockets

Perfect For Both Sleep and Lounge: The Perfect Men’s Pajama Pants That Are Both Elegant And Comfortable to lounge in.

Adjustable Fit: Men’s Pajama Pants With an elastic waistband with an adjustable drawstring ensures a perfect fit.

Practical Design: These Men’s Pajama pants feature a button fly for easy access. As Well As On Seam Pockets Perfect For Storing All Your Small Essentials.

You'll never wake up on the wrong side of the bed in these soft and comfy micro fleece pants. These pants are luxuriously soft fabric feels great against the skin

Easy use button fly and an elastic waistband with an adjustable drawstring for a no pinch fit

Tagless design will leave yout ich free

Classic sleep pant with an elastic waistband and crafted in a comfortable cotton blend

Comfortable elastic waistband with drawstring; buttoned fly

Super Soft Material: Made of 100% brushed cotton flannel fabric, the mens pajama pants provides a super soft sense of hand, as well as keeping you warm during the cold weather

Side Pockets: The lounge pants for men features two roomy pockets, easily keep small items such us phone, keys etc

Customized Fit: The full length pj pants for men features a relaxed straight leg and an elastic waistband with adjustable drawstring, enable the most convenient and practical wearing experience

PREMIUM FLANNEL FABRIC: Crafted from 100% brushed cotton, our pajama pants offer a perfect blend of durability and comfort. Experience the cozy warmth and natural feel of high-quality flannel that will keep you comfortable all year round. These versatile pants are a must-have addition to any men's pajama collection.

TAILORED FOR YOUR COMFORT: Enjoy a personalized fit with our pajama pants. Featuring an elastic waistband and an adjustable drawstring, these pants allow you to customize the fit according to your preference. Say goodbye to restrictive waistbands and hello to the perfect snugness for a good night's sleep or relaxing at home.

CONVENIENT + FUNCTIONAL: Designed with your convenience in mind, LAPASA loungewear pants come with spacious side pockets that easily accommodate your essentials. Whether it's your phone, keys, or remote control, keep them within easy reach. We've also added a hidden flap with a single button for quick and hassle-free access.

Easy Care; Machine Wash, Tumble Dry

Comfort Fit; Adjustable Drawstring Waist

Breathable, Soft, Comfortable Knit Fabric; One Button Fly

COMFORT AT ITS BEST - These super soft pants feature a lightweight and comfortable fabric that's easy to sleep in and live in, no matter how you like to chill.

THE LOOK YOU LOVE - These comfortable sweatpants feature our signature C patch logo at the hip.

FEELS LIKE A DREAM - Lightweight cotton jersey joggers are easy to sleep in or live in.

Incredible Comfort: The Hanes Men's X-Temp Jersey Pant designed using non-irritating solids: 100% cotton; heather: 60% cotton/40% polyester jersey, these feel sensationally soft on the skin and make the perfect loungewear for catching a comfortable nap, just relaxing in the house or getting a great nights sleep

We take lounging seriously, these are made to fit loose. Details include X-Temp fabric, drawstring comfort waistband, and 2 on seam side pockets. Our sleep set is available in various colors and sizes

We’ve used the best materials we could find and pieced them together with superb stitching, creating men's sleepwear that offers total durability and holds up well in the wash without shrinking or running color

Mens Mickey Mouse pajama bottoms

Show off your love for all things Disney despite your grown-up status with these awesome pjs inspired by the iconic mouse

These lounge pants come with a fun checkered pattern in red and grey as well as Mickey's face on the red squared

100% Cotton long leg mens flannel pajama pants, sleep pants, lounge pants.

Strong warm and cozy fabric with a full wide cut for easy movement and maximum sleeping comfort.

Comfortable covered elastic waistband with adjustable drawstring and a single-button fly, designed for your sleeping comfort.

WHO DOESN'T LOVE COZY PJS? - Kick back, relax and enjoy a lazy day in Active Club's Plaid Pajama Pants! Perfect for chilly winter nights, our mens pajama pants use an insulated fabric that locks in warmth for a toasty cozy bliss!

PREMIUM COMFORT - These flannel pants for men are so comfortable, you'll virtually live in them! Ultra-soft polar fleece material hugs your bottom half when you're lounging around, hanging out in your dorm room or hitting the sheets for a Sunday afternoon snooze.

FITS JUST RIGHT - These mens plaid pajama pants have an elastic waistband and drawstring closure for a perfectly snug and adjustable fit. Relax with complete freedom and control over your comfort with our men's pajama bottoms.

BONUS WARDROBE PACK COLLECTION ;4 Soft Luxury Feel Cotton Brushed Flannel Lounge Pants in Nice Full Weight Thickness & Soft Fleecy Brush

NATURAL COTTON COMFORT ; 100% Natural Breathable Cotton Fabric / Super Roomy Loungewear Fit

FUNCTIONAL DESIGN / COMFORTABLE FIT ; Side Vented Deep on Seam Pockets / Adjustable Cotton Fabric Drawstring & Fabric Covered Expandable Elastic Waistband / A Hidden Button Fly Front Opening /Non Restricting Leg Opening Bottom

2 side pockets deep enough to carry your cell phone, 1 in wide elastic waistband, tagless design, no fly, and drawstring closure available in several different colors of plaid

Classic straight-fit mid-weight woven cotton flannel sleepwear with soft, cozy feel perfect for lounging in all year

See sizing chart provided within the images for sizing information

Relaxed fit pajama pants

Soft-touch silky fleece fabric

Elastic covered waistband with contrast drawstring provides a perfect fit

Premium Flannel Material: YINCOZI men's pajama bottoms are made of 100% cotton flannel, ensuring maximum comfort and warmth during cold nights while maintaining a lightweight and soft feel against your skin.

Stylish Designs: Featuring a variety of trendy patterns, including plaid, black, flamingo, and Taylor Swift-inspired prints, our pajama pants cater to every man's taste, making them perfect for both sleepwear and loungewear.

Adjustable Comfort: These men's flannel pants come with an elastic waistband and drawstring, providing a snug yet comfortable fit that can be easily adjusted for your personal preference, whether you're sleeping or lounging.

Relaxed sleep pant featuring elastic waistband with drawstring and front fly with single button

Two deep side-seam pockets

Soft-hand feel

NEXT-LEVEL COMFORT: Sleep or lounge in PJ pants you’ll love to rock. We’ve designed these flannel pajama pants for men using a blend of 55% cotton and 45% polyester. The result? Extra soft and breathable pajama bottoms you’ll want to wear round the clock.

CHILL IN STYLE: Kick back and relax in timeless plaid. Whatever your taste, you’ll find a color and pattern to match from our collection. We’ve also designed the men’s sleeping pants with 2 side pockets. Now you have room to carry your phone or even hide that remote.

GREAT FIT: Nice and roomy, these lounge pants give you the freedom to move without restrictions. There is a button fly, functional drawstring for a custom fit, and an elastic waist designed to never dig. Our pyjama pants come in S-3XL to suit just about any build.

HIGH-QUALITY CONSTRUCTION. Offering soft, breathable comfort yet abrasion-resistant to hold up against continual use, these Flannel Pajama Pants are made with a durable blend of 55% cotton and 45% polyester materials.

OPTIMAL COMFORT. Featuring a roomy relaxed fit, these luxuriously soft pajama bottoms are perfect for sleeping, after workouts or for lounging around the house. They have a flannel design, elastic waist with drawstring, concealed open fly, side seam hand pockets and a 30-31” inseam.

GREAT GIFT IDEA. Ashford & Brooks’ Men’s Super Soft Flannel Sleep Pants, will make a great choice for birthdays, holidays and other gift-giving occasions for any special man in your life

52% Cotton, 48% Polyester

Very Soft / Cozy / Heavy Material. 30% Heavier than other brands. Shrink Resistant

Sleepwear / Loungewear Relaxed fit Pajama Pants that feel soft to the skin for a comfortable night sleep or just relaxing

Quality Materials: Lightweight ringspun cotton knit fabric is soft and strong. Brushed on both sides for extra softness. Dye color stays bright even when you wash and wear this PJ pant often.

Design Features: Light cotton fabric will keep you from breaking out in a sweat when you sleep. Slim cut never looks baggy and feels comfy with underwear. Functional hidden fly and two on-seam pockets.

Style Options: Wear these print pajama pants with an athletic tee on a quiet morning. Add a robe in the winter to keep snug.

100% Cotton soft flannel fabric is strong and durable to ensure you feel comfortable and get a great nights sleep

Elastic waist has a drawcord to adjust the fit. Make sure these pants don't sag down by tying the drawstrings for a more personalized fit that's just right for you

We’ve used the best materials we could find and pieced them together with superb stitching, creating men's sleepwear that offers total durability and holds up well in the wash without shrinking or running color

*Alert: True to size : Please follow the size examples below*(EX: Size "Large recommended" - Size for 6" 215 lbs.) (EX: Size "Medium" 5'9"165 lbs.)

***CAUTION*** DO NOT TUMBLE DRY / MACHINE WASH COLD GENTLE CYCLE / IRON UP TO 230˚F / LINE DRYING IN THE SHADE

CQR Sleepwear & Lounge Series for comfort and dailywear

BUFFALO-PLAID PAJAMA PANTS FOR MEN: These men's pajama pants feature wide legs in fun plaid patterns and eye-catching colors. Their roomy fit is lightweight on your skin for a comfy night's sleep.

BUFFALO-PLAID PJ PANTS: These pajamas are made from 100% premium polyester fleece, making them super soft and warm. They're preshrunk and conveniently machine washable. Just tumble dry on low after washing.

ELASTIC WAISTBAND: Say goodbye to uncomfortable or inconvenient pajama pants! Our pj pants for men feature a plush-backed elastic waist and a button fly for a comfortable fit.

Relaxed fit sleep pant

Two side-seam pockets

Covered one button fly