The best men's pajamas you can buy

Why you'll love them: Nothing says winter like a warm, crackling fire, a mug of hot chocolate, and a set of red and black plaid flannel pajamas like the Alexander Del Rossa Cotton Flannel PJs.

When you and the family gather together for the holidays, chances are you're not wearing coats and tails, but more like sweats and t-shirts. If you want your winter holiday garb to be warm and snuggly and also look the part, then the classic red and black plaid styling of this Alexander Del Rossa Cotton Flannel PJ Set is a perfect choice.

Made from 100% cotton, these pajamas are warm and soft, allowing you to maintain a comfortable temperature even when the mercury drops. The long sleeve shirt has five chest buttons, and the pants have both an elastic waistband and a drawstring belt built in. This arrangement helps you keep the bottoms securely on your person without them squeezing you too tightly at the hips.

While these pajamas are machine washable and can be tumbled dry, do keep in mind that, being 100% cotton, they will shrink some during the first few washes, so buy a size that will still fit you even after it gets a bit smaller.

Also, if you love the idea of warm cotton flannel pajamas but aren't on board with the classic red/black plaid look, they also come in more than two dozen other styles!

The Alexander Del Rossa Cotton Flannel PJ Set has a solid 4.2-star rating even with hundreds of reviews posted on Amazon. One customer calls them "well made and worth the price" while another says they are made of "good quality flannel" and reports that her husband loves them.

A writer with BeardTrimAndGroom noted the "elastic waist as well as a drawstring" allow "for a good fit."

Pros: Classic plaid styling, warm and soft thanks to 100% cotton construction, drawstring and elastic waistband

Cons: Do not feature a fly

Buy Alexander Del Rossa Cotton Flannel PJ Set on Amazon for $34.99 to $39.98 (price varies by size and pattern)

Why you'll love them: Channel your inner Hugh Hefner when you slip on the Tony & Candice Classic Satin Pajamas.

If I didn't want to highlight the silky smooth feel of the Tony & Candice Classic Satin Pajamas, then I would have called these "the best low-cost pajamas" instead of "the best satin pajamas." This two-piece sleepwear set costs about twenty-two bucks, yet the pajamas are of a quality that will last for several years and, with proper care, they will feel as silky smooth the 100th time you put them on as they do the first.

Let's get a couple of drawbacks dealt with right quick. These have to be hand washed and air dried or else taken to a professional cleaner. And until they have been washed a few times, they might stain light colored fabrics. But that's it, really.

Care instructions aside, these are comfortable, well-made pajamas that feature an elastic waistband and button fly in the trousers, buttons and a breast pocket on the shirt, and that help regulate your body temperature, keeping you just a bit warmer but without trapping in too much heat like thicker fabrics often do.

And again ... that price!

The Tony & Candice Classic Satin Pajamas have a 4.4 out of five-star average rating with Amazon customers. One gentleman calls them "very silky" and "well made," saying he is very happy with the pajamas and "will buy more." Another customer says they are "very comfortable, and even better, my wife loves them."

A review on the fittingly named site SilkPajamas called these pajamas "nicely tailored" and made from a "lightweight material with a silky feel for a comfy night [sic] sleep."

Pros: Great low price, smooth silky feel, not too hot

Cons: Pants run too long

Buy the Tony & Candice Classic Satin Pajamas on Amazon for $17.99 to $23.99

Why you'll love them: The short-sleeved shirt and short pants of the Latuza Summer Sleepwear Striped Pajamas are perfect for those gentlemen who like it cool.

When you picture a pair of pajamas, you probably think of long pants and a long sleeve shirt and imagine garments designed for warmth and comfort. Well, whoever said the only way to be comfortable was to be warm, anyway? Whether you live in a climate with hot weather or if you just like to sleep in a cool room and in minimal clothing regardless of the ambient temperature, the Latuza Summer Sleepwear Striped Pajamas will be perfect for you.

The short-sleeved shirt and short pants from this set are made from a unique blend of materials. They are 67% viscose — a semi-synthetic fiber known for durability and elasticity — 30% cotton, and 3% spandex. The result is apparel that is soft and pliant, breathes well to release body heat and moisture, and that will last for years even with frequent wear and washings.

The shirt features a breast pocket while the pants have dual side pockets and an elastic waistband. Perhaps best of all, should you need to run a quick errand out of the house, when wearing this ostensible sleepwear you will, in fact, be suitably dressed for a public appearance, though quite a casual tableau you'll present.

One happy Latuza Summer Sleepwear Striped Design Casual Pajamas wearer says they are "the softest, most comfortable pair of pajamas [he] could find," while another fellow says they offer "outstanding comfort all night long" and feel "almost like a silk blend."

Pros: Lightweight and cool, good low price, unique fabric blend

Cons: Sizing often inaccurate

Buy the Latuza Summer Sleepwear Striped Design Casual Pajamas on Amazon for $19.99 to $24.99

Why you'll love it: It's no secret that we love Tommy John underwear, but the brand's undershirts, pants, socks, and other loungewear staples are also amazing.

Tommy John revolutionized underwear, and now it's slowly coming for the rest of your closet with loungewear that you can also wear as pajamas.

We're big fans of the brand here at Insider Picks. The team has written glowing reviews of both the men's and women's underwear as well as the loungewear.

The items are simple, rendered in mostly solid colors and soft fabrics that are designed to stay comfortable for long periods of time. Standouts include the Second Skin Lounge Pant, made of super soft non-pilling micro-modal, Stay-Up Dress Sock, and the Second Skin Crew-Neck Stay-Tucked Undershirt.

Prices are high for such basic items (think $43 for an undershirt), but reviewers agree that the smart design elements and luxe fabrics make them worth the cost.

"I keep trying less expensive undershirts, but finally threw in the towel and said Tommy John's 'second skin' are the only ones I will be buying, going forward," reads one review on the website.

Another shopper called the Second Skin Lounge Pant, "seriously the most comfortable pair that I own."

Pros: Offers comfortable underwear, undershirts, lounge pants, shirts, and socks with smart design elements and soft materials

Cons: Pricey compared to competitors (but you get what you pay for!), very limited size range in some styles

Shop the Tommy John collection here Check out our other top picks for loungewear here

The best men's slippers you can buy

With a fine pair of slippers on his feet, a man can relax around the house in comfort or step outside to grab the paper or some logs for the fire. We considered insulation, materials, tread design, and more as we chose the best slippers.

The five slippers in our guide all have at least two things in common: They will keep your feet warm and comfortable. Beyond that, each pair offers its own perks, no gimmicks involved.

Here are the best men's slippers you can buy:

• Best slippers overall: UGG Ascot Slippers
• Best slippers for warmth: Sorel Manawan Slippers
• Best indoor/outdoor slippers: Slippers International Tamarac Cody Sheepskin Slippers
• Best affordable slippers: YQXCC Memory Foam House Slippers
• Best moccasin style slippers: Minnetonka Sheepskin Moose Slippers