This two-piece cropped pants and tank set is part of Soma's Cool Nights, a collection of breathable and cooling sleepwear that's made with lightweight rayon fibers that never cling to the body. It was also the pajama brand most recommended by the members in our Facebook group — no less than four of our Facebook followers recommended the brand's pajamas. You can find this set available in three prints and sizes XS-XXL.

Currently on sale at Land's End, this airy jersey knit nightgown is "impossibly lightweight," according to the brand and feels cooling on the skin. It's available in four colors and sizes XS-XL.

"Land's End cooling night gown is in fact cooling!" — Brooke Fogg-Wolfe

Facebook follower Sarah Poulsen shared a recommendation for bamboo pajamas. According to many reviewers, this soft and lightweight set keeps warm sleepers cool at night thanks to the viscose bamboo fabric that's naturally temperature-regulating. The set features a satin detailing on the neckline and short cuff, and they can be purchased in sizes S-4XL and 20 colors.

This flowy sleeveless night dress is made almost entirely from bamboo viscose fibers, a material that's naturally breathable and cooling. Offering coverage down to the knee, this gown comes in women's sizes S-4XL and over 40 colors.

Promising Amazon review: "As an older menopausal woman, I've tried everything to keep cool during my hot flashes. One day, a co-worker told me she switched to Bamboo fabric to stay cool, so I decided to do some research. I was sold on the idea and purchased this beautiful, inexpensive black nightgown. To my surprise, it is incredibly soft, there are no straps, it has full coverage, and most importantly it keeps me comfortably cool. The XL fits perfectly and is so comfy. This nightgown has managed to keep me cool throughout the night, and the material is dry in the morning. I love this gown and color! It is a game changer for me, I have less hot flashes!! I will definitely buy more!!!!!!" — Karen Dee

Hitting mid-shin and featuring a sleeveless design, this chemise night dress is made from viscose, a cotton modal-like fabric that's soft as jersey knit. You can find this in four patterns and sizes S-5X.

"Cotton or thin breathable modal type fabrics - shorts & tanks….or new to me is the 'moo moo' style, which I totally get the hype from the older gals now! Love the Joyspun brand currently." — Cheap Mama Chick

This classic button-up short set is made by luxury bedding and sleepwear brand Cozy Earth, and has a stretch knit feel and a bamboo fabric construction — a material that was mentioned several times in our Facebook group. The brand claims that the set's draped fit, which comes in 12 colors and sizes XS-XXL, resists bunchy and prevents night sweats.

"Bamboo sheets and bamboo or modal pjs or loose tops and sleep shorts. I splurged on Cozy Earth and Jennifer Adams sheets, a pair of Cozy Earth short pjs and a couple of loose modal sleep tops plus some sleep shorts from ThirdLove. Overhead fan on and another rotating fan somewhere nearby." — Leslie Tubbs-Tiscia

Cool-Jams is a sleep and loungewear brand that specializes in using a moisture-wicking and quick-drying fabric, which can be good for anyone dealing with night sweats. This relaxed-fit night shirt comes in four colors and sizes S-3X.

"I love the PJs made by Cool-Jams. I also have Lyocell sheets." — Marla Stauth

Several members of our Facebook group touted the breathable wonders of 100% cotton pajamas — so we found this affordable sleep set made from 100% machine-washable cotton, which promises to be not too thick and not too thin. It's available in 14 colors and sizes S-XXL.

Made from nearly 100% cotton, this lounge tank has a cropped and breathable fit, comes in five colors and sizes XS-4X, along with three lengths.

"An old navy cotton tank top and a pair of shorts is my sleeping attire all year." — Marisa Restagno Smyers

Based on the high number of HuffPost Women Facebook group members who said they wear cotton shorts to bed, we selected this multi-pack of classic Ralph Lauren 100% cotton men's boxers, which have close to 4,000 5-stars on Amazon. They feature an ultra-soft and tag-free waistband, come in multiple color combinations and men's sizes S-4X.

"Guys cotton boxers and tank top maybe. Cotton cotton cotton!" — Sharon Cartter

Available in sizes S-3X, this sleep shirt from Jockey is made from a moisture-wicking fabric that has a lightweight and silky feeling on the skin. Its easy pull-over design means there's no buttons or pesky ties to poke you at night.

"I have a nightshirt from the cooling comfort line from Jockey that is my favorite right now. I can’t have anything on my legs or feet no matter what time of year. Rayon and bamboo are the best fabrics for cool sleeping." — Laurie Vrooman

This two-piece set is made from 100% mulberry silk, a naturally thermoregulating material by the luxe sleep brand, Lunya. It features a non-adjustable racerback cami and relaxed-fit lounge shorts, both of which are machine-washable and available in sizes XS-XL. Find them in up to six colors and one limited edition pattern.

"Lunya silk and organic Pima cotton- but they are pricey!" — Allie Cat

Allie Cat also suggested pajamas made from organic Pima cotton, a supreme material that luxury loungewear brand, Eberjey, is very familiar with. This tank set is made from 100% organic Peruvian Pima cotton that the brand claims is impeccably soft-to-the-touch and breathable. Find this splurge-worthy set in two colors and sizes XS-XL.

This Karen Neuberger pajama set is made from a soft and 60% cotton jersey knit fabric, comes in several patterns and colors and sizes S-XL.

"I wore Karen Neuberger pajamas with the long pants. Skin to skin legs were too hot and sticky. Cotton sheets helped too." — Vicky Holman Saylor