Sleep posture can influence breathing, quality of sleep, how your body feels, and certain health conditions (“What Is the Best Sleeping Position,” Sleep Foundation, 2025). The best sleeping position is one that feels comfortable while promoting healthy spinal alignment.

Whether you sleep on your side, back, stomach, or in multiple positions, understanding how sleep posture affects the body may help you create a more comfortable and supportive sleep environment. Please note, the considerations provided in this article are intended as general shopping guidance rather than clinical requirements. Mattress comfort and support preferences vary by individual. If you have a specific health concern, please speak with a qualified professional for personalized recommendations.

Why Does Sleeping Position Matter?

During sleep, the body works to restore and repair itself. The goal of a supportive sleep position is to maintain neutral spinal alignment, which generally means keeping the ears, shoulders, and hips in a relatively straight line to minimize mechanical stress on the joints and ligaments (“The Science of Sleep: A Physical Therapist’s Guide to the Best Sleeping Positions,” Confluent Health, 2026).

Sleep position may also affect breathing, heartburn, and certain types of pain. However, no single sleep position is right for everyone. Personal comfort, individual health considerations, and existing symptoms may all influence which position feels best (“Choosing the Best Sleep Position”, Johns Hopkins Medicine, 2025; “What Is the Best Sleeping Position,” Sleep Foundation, 2025).

Side Sleeping: A Popular Choice for Comfort

Side sleeping is the most common sleep position among adults, with more than 60% of adults estimated to sleep on their side.

When side sleeping, maintaining a straight, neutral line from the neck through the hips may help support spinal alignment and reduce aches and pains. A properly sized pillow can fill the space between the head and mattress, helping prevent the neck from bending too far upward or downward.

Because side sleeping may place additional pressure on the shoulders and hips, side sleepers may prefer a mattress with enough cushioning to help limit excess impact in these areas (“What Is the Best Sleeping Position, Sleep Foundation,” 2025). Placing a pillow between the knees may also help keep the hips aligned, limit pelvic rotation, and reduce pressure on the lower back ("The Science of Sleep: A Physical Therapist’s Guide to the Best Sleeping Positions,” Confluent Health, 2026).

What Side Sleepers May Consider in a Mattress:

• Cushioning around the shoulders and hips
• Support that helps maintain neutral spinal alignment
• A comfort level that accommodates personal preferences
• Motion-reducing features for those who share a bed

Back Sleeping: Balanced Support and Alignment

When lying on the back, it may be easier to maintain spinal alignment and distribute body weight evenly across the sleep surface (“The Science of Sleep: A Physical Therapist’s Guide to the Best Sleeping Positions,” Confluent Health, 2026). Though this position is often recommended, back sleeping may not be appropriate for everyone. For some people, the position may contribute to snoring, obstructive sleep apnea symptoms, or acid reflux. Some people with back or neck pain may also find that another position is more comfortable (“Choosing the Best Sleep Position, 2025").

Some back sleepers may find that placing a thin pillow under the knees or lower back helps reduce stress in the lumbar area and supports the natural curve of the spine (“What Is the Best Sleeping Position,” Sleep Foundation, 2025). Johns Hopkins Medicine also notes that a bolster or pillow supporting the legs may help ease lower-back discomfort.

What Back Sleepers May Consider in a Mattress:

• Support for the lower back
• Even distribution of body weight
• A balance of cushioning and support
• A comfort level suited to personal preferences

Stomach Sleeping: Additional Support May Help

Stomach sleeping is the least common sleep position and may strain the neck and lower back. Because stomach sleepers generally turn their heads to one side, this position may move the neck out of alignment with the rest of the spine.

People who prefer stomach sleeping may consider using a very thin pillow, or no pillow, beneath the head to reduce the upward angle of the neck. Placing a thin or flat pillow beneath the hips or pelvis may also help limit excessive arching in the lower back “What Is the Best Sleeping Position,” Sleep Foundation, 2025; “The Science of Sleep: A Physical Therapist’s Guide to the Best Sleeping Positions,” Confluent Health, 2026).

What Stomach Sleepers May Consider in a Mattress:

• Support that helps limit excessive sinking around the hips
• A comfort level that supports a more neutral posture
• A thin or low-profile head pillow
• Additional support beneath the hips or pelvis, when comfortable

How Your Mattress Works with Your Sleep Position

Mattress support and sleep position often work together to influence comfort and alignment. A mattress that does not provide appropriate support may make it more difficult to maintain a comfortable sleep posture. Research summarized by Confluent Health also indicates that medium-firm mattresses may offer a balance of support and pressure relief for people experiencing back pain (“The Science of Sleep: A Physical Therapist’s Guide to the Best Sleeping Positions,” 2026).

When selecting a mattress, consider your primary sleep position alongside your health needs and personal comfort preferences.

• Side sleepers may prefer additional cushioning around the shoulders and hips.
• Back sleepers may prioritize even weight distribution and lower-back support.
• Stomach sleepers may prefer support that limits excessive sinking around the hips.
• Combination sleepers may wish to consider how comfortably they can change positions on the mattress.

The Posturepedic^® Design, PrecisionFit^™ Coils, and Personalized Support

Every Posturepedic^® mattress reinforces the center third of the bed so your core, the heaviest part of your body, has targeted support where you need it the most. In addition to the Posturepedic^® design, we created the PrecisionFit™ Coil to flex to your body's individual needs and offer immediate cushioning and deep down support as weight is applied. This means that, as pressure increases, so does support — offering personalized comfort no matter your preferred sleep position.

A Note from Sealy^®: We love sharing tips to help you achieve better sleep. While we strive to provide objective, industry-standard insights, we also design and manufacture products to address specific sleep challenges.

This content is for informational or general educational purposes only and does not constitute individualized advice. It is not intended to replace professional medical evaluation, diagnosis, or treatment. Always seek the advice of your physician for questions you may have regarding your sleep quality and overall health.

Frequently Asked Questions

What is the best sleep position to help reduce snoring?

Sleeping on your side or sleeping on your back with slight elevation is often recommended to help positional snoring; however, some conditions may need the advice of a doctor. Always use your best judgement and get treatment from a qualified professional when necessary.

How can I make side sleeping more comfortable?

Finding a mattress that offers exceptional pressure relief may help make side sleeping more comfortable. You can also try placing a pillow between your legs to reduce strain on your lower back.

How can I make back sleeping more comfortable?

Finding a mattress that offers exceptional support may help make back sleeping more comfortable. You can also try placing a pillow behind your knees to reduce strain on your lower back.

Sources

“What Is the Best Sleeping Position?” July 25, 2025. Published by Sleep Foundation. Read the article. Full URL: https://www.sleepfoundation.org/sleeping-positions Sleep Foundation discusses common sleep positions and choices that may help relieve back pain and sleep apnea symptoms.

“The Science of Sleep: A Physical Therapist’s Guide to the Best Sleeping Positions.” March 2, 2026. Published by Confluent Health. Read the article. Full URL: https://confluenthealth.com/resources/guide-to-the-best-sleeping-positions Confluent Health discusses different sleep positions, who they’re good for, and tips to improve sleep.

“Choosing the Best Sleep Position.” October 6, 2025. Published by Johns Hopkins Medicine. Read the article. Full URL: https://www.hopkinsmedicine.org/health/wellness-and-prevention/choosing-the-best-sleep-position Johns Hopkins discusses picking a sleep position based on health concerns and comfort.