We What We Do

At Sleep Advisor, we believe a quality life starts with great sleep. The days of bragging about how few zzz’s you get are over. Self-care is more than a popular buzzword, and rest is a key ingredient. Sleep affects both your mental and physical well-being, and everyone deserves to feel their best, which is why we’re passionate about helping you dream with ease.


Products Reviewed


Sleep & Mattress Sources Researched

12.7+ million

People Visited SleepAdvisor.org

Who We are

Meet the Team

Julia Forbes Sleep Advisor Lead Product Tester

Julia Forbes

Lead Product Tester and Video Editor

Julia is the Lead Reviewer at Sleep Advisor and a certified sleep science coach, specializing in testing out mattresses and sleep accessories – she’s in the right line of work, because she loves to sleep.

Julia has been working in the sleep health space for nearly 4 years with brands like Roku’s This Old House, Sports Illustrated, and Real Simple Magazine, and researches new products coming onto the market daily. She is based in Raleigh, North Carolina. When she’s not testing out mattresses, she’s going to the farmer’s market (or probably taking a nap) with her senior pup, Rosita. 

Read Julia Forbes’ bio.

Loren Bullock, lead reviewer on Sleep Advisor

Loren Bullock

Lead Product Tester and Video Editor

Loren is the Lead Reviewer at Sleep Advisor. She has prioritized sleeping for as long as she can remember, rarely deviating from seven to nine hours each night. As a mattress and bedding expert for the past four years, Loren aims to help people achieve optimal sleep health and pick the best sleep accessories for their needs. You can find her testing mattresses, exploring the best sleep hacks, and telling you about her findings on Sleep Advisor’s YouTube channel and TikTok account.

Dream Mattress: DreamCloud Premier

Read Loren Bullock’s bio.

Dr. Rajkumar Sleep Advisor Expert

Dr. Raj Dasgupta


Quadruple-board certified in internal medicine, pulmonary, critical care and sleep medicine

Dr. Raj Dasgupta is an ABIM quadruple board-certified physician specializing in internal medicine, pulmonology, critical care, and sleep medicine. Along with his professional work in medicine and clinical research, Dr. Dasgupta serves as an associate professor of clinical medicine at the University of Southern California in Los Angeles. 

Along with his role as associate professor, Dr. Dasgupta is the Assistant Program Director of the Internal Medicine Residency and the Associate Program Director of the Sleep Medicine Fellowship at USC. He is also a fellow of the American College of Physicians (FACP), the American College of Chest Physicians (FCCP), and the American College of American Academy of Sleep Medicine (FAASM). 

Dr. Dasgupta brings over 20 years of medical experience to Sleep Advisor, where he shares his expertise on important sleep health topics.

Read Dr. Raj Dasgupta’s  bio

Abby Wood

PR Strategist at Sleep Advisor

Abby is in charge of Sleep Advisors media coverage and marketing strategists to help increase brand awareness and strengthen our online presence. She works alongside our experts to enhance their thought leadership and increase exposure.

Carlie Gasia, PR at Sleep Advisor

Carlie Gasia

PR at Sleep Advisor

Carlie is a certified Sleep Science Coach and Wellness Coach, dedicated to helping you unlock the secrets to better sleep and overall well-being. With her expert knowledge and passion for sleep science, Carlie will guide you on a journey to restorative, rejuvenating slumber and a healthier, happier life.

Read Carlie Gasia’s Bio

Julia Siemen

PR at Sleep Advisor

Julia is a certified Sleep Science Coach dedicated to helping you get a better night’s sleep. With her expertise and passion for sleep science, she is always happy to provide knowledge for restful sleep. Her goal is to promote a healthy and happy lifestyle by emphasizing the importance of sleep health.

Dream Mattress: Saatva Classic

Read Julia Siemen’s Bio

Jill Zwarensteyn is Sleep Advisor's Editor

Jill Zwarensteyn


Jill Zwarensteyn is the editor for Sleep Advisor and a certified sleep science coach.

She is enthusiastic about providing helpful and engaging information on all things sleep and wellness.

Based in Los Angeles, Jill is an experienced writer and journalist who enjoys spending her free time at the beach, hiking, reading, or exploring new places around town.

She’s also an avid traveler who has a personal goal of being able to successfully sleep on an airplane someday.

Dream Mattress: Silk & Snow Hybrid

Read Jill Zwarensteyn’s bio

Melanie Kassel Performance Editor for Sleep Advisor

Melanie Kassel

Performance Editor

As Sleep Advisor’s Performance Editor and a certified sleep science coach, Melanie writes and edits content throughout the site to ensure it’s accurate, engaging, and up-to-date.

Sleep has always been a top priority for her—even at childhood sleepovers, she was never able or willing to pull an all-nighter. After spending some time researching studies and writing articles for a sleep hygiene app, she became hooked on sleep science at large.

These days, she’s a proud member of the Sleep Advisor editorial team and finds continual inspiration in the best sleeper she knows: her enormous cat, Cole.

Dream Mattress: Saatva Latex Hybrid

Read Melanie Kassel’s bio

Livvi DiCicco

Performance Editor

Livvi is the Performance Staff Writer for Sleep Advisor and works on maintaining engagement and editorial standards throughout site content.

Her friends say she’s an “expert napper,” able to sleep whenever, wherever, for however long is necessary. She also has a special interest in dreams and their meanings, since she apparently talks a lot in her sleep.

Aside from sleeping, she’s passionate about writing and digital art. You’ll often find her downtown in her home of Iowa CIty with a sketchbook drinking boba tea.

Dream Mattress: Saatva Classic

Sosha Lewis

Senior Staff Writer

Sosha Lewis is a senior staff writer for Sleep Advisor and a certified sleep science coach. Lewis is happy that she is able to combine her love of sleep with her love of writing. Lewis also has had articles featured in The Washington Post, Huffington Post, MUTHA Magazine, Charlotte Magazine, and The Charlotte Observer. Her weekly column, Soshally Awkward, is featured on the nationally-syndicated radio show, Bob & Sheri.

She lives in Charlotte, NC with her husband, daughter, and lovable trash-panda of a dog, Olive.

Dream Mattress: DreamCloud Premier Rest

Read Sosha Lewis’ bio.

Olivera Jancikin

Content Writer

Olivera is a content writer for Sleep Advisor and is enthusiastic about sleep. She firmly believes in the benefits of daytime naps on top of getting a full 8-hour sleep at night.

She started writing in 2016 and never looked back. What she appreciates the most is her flexible working hours and the ability to work with people worldwide.

In her free time, Olivera enjoys reading Spanish literature, taking pilates classes, and trying out new cocktails with friends.

Read Olivera Jancikin’s bio.

Rachel Noall Sleep Advisor SEO Team

Rachel Noall

Senior SEO Associate

Rachel is the SEO site lead at Sleep Advisor and a Certified Sleep Science Coach. She’s been working in the sleep space for two years, across brands like Mattress Nerd and Mattress Advisor. 

Rachel calls the city of Denver home, and enjoys exploring new places with her family and dog, Potato (who, though small, tries to hog space on the bed). As a former college athlete and now avid outdoorsy person, Rachel values getting the best night’s rest possible, whether that’s in a bed, hammock, or when camping. 

Dream Mattress: Silk & Snow Hybrid

Andrew Warren Sleep Advisor SEO Team

Andrew Warren

Senior SEO Associate

Andrew is a Senior SEO Associate and Certified Sleep Science Coach. He enjoys helping connect Sleep Advisor’s wide array of resources with people looking to improve their sleep quality or research new products. He is passionate about learning about the links between sleep and health, nutrition, and exercise as well as finding practical ways to get a better night’s sleep.

He currently lives in Charlotte, NC and enjoys playing tennis, hiking and watching the Carolina Panthers and UNC Tar Heels in his free time.

Dream Mattress: Brooklyn Bedding Aurora Luxe

Sarah M Price Sleep Advisor SEO Team

Sarah Price

SEO Associate

Sarah Price is our SEO Associate on Sleep Advisor. Sarah helps make sure our content is up to date and easy for our readers to find. As a notoriously bad sleeper, Sarah enjoys being part of a team full of sleep experts to give her tips and tricks to help her on her sleep journey- might need to start by upgrading from her high school mattress.

Based in Charlotte NC, Sarah spends her free time traveling, paddle boarding and hiking with her dog Camper.

Dream Mattress: Silk & Snow Hybrid

Danica Moravcevic


Danica ensures all our content is presented beautifully on our website. As a part of the team for four years, she’s never stopped showing her passion for coding. Studying wellness through her role has helped improve her sleep, as she now enjoys drifting off to sleep on a perfect mattress topper, supportive pillows, and tucked under a fluffy duvet, which allows her to wake up refreshed.

When she’s not coding, she likes to take long walks with her dog, play adventure PS games and read psychological books.

Dragan Zavisa

Marketing Associate

Dragan is in charge of enhancing our website so that it’s easily accessible to our readers.

Dragan very much respects his body; however, under no circumstance is he willing to allow his mattress to adjust to his well-shaped figure for the necessary 8 hours of sleep, which his mind desperately craves— he’s an extra-firm mattress kinda guy.

Legend has it, he once slept on a rock, and he didn’t even mind as long as he could get some sleep. In his spare time, he likes playing drums, watching independent European cinema, reading French comics, and frequenting music festivals— where he might have another chance to find a rock to lay his head on and drift peacefully into dreamland.

What We Stand For

Our Mission & Core Values

We believe diversity is critical to growth and that talent resides worldwide, as our company currently spans six different time zones. We love working with an international team, and as we challenge each other to be our best, these values are what we keep at our core.

Check Your Ego

We take a progressive approach, and there is no traditional hierarchy. Suggestions for improvement flow up as often as they run down because everyone’s voice is equally valued.

Stay Honest

Challenging the way things are done or pointing out something wrong is hard, but it’s crucial to speak up, or we end up resting on our laurels. The truth can be brutal, but pushing through is where growth begins.

Be Curious

The sleep industry changes constantly. If we aren’t consistently gathering the latest data or challenging our sources, our information can quickly become obsolete. Further, we value education, and whether that’s attending a sleep course or participating in our team book club, it’s critical to keep learning.

Ask Questions

There are no silly questions— you can’t satisfy curiosity without a query. If you don’t know, ask, we’re all ears.

More About

Our Policies

We are committed to being upfront and transparent about our policies. More information about how we evaluate products and run our site can be found here, along with our disclosures and disclaimers.

It’s critical to keep in mind that while we do extensive research and testing, we are not doctors, and no advice we offer could take the place of a medical professional. We hope you’ll use our findings as a platform for your own research and questions you might ask at your next doctor visit.

Get In Touch

Contact Us

Have questions? Comments? Want to work for us? Send us a message. We’d love to hear from you.