"Why Does My Hip Hurt When I Sleep on My Side?": Causes of Hip Pain and How Physical Therapy Can Help
- delaney1155
- 3 minutes ago
- 3 min read
If you’ve noticed discomfort on the outside of your hip when lying on your side, you’re not alone. Hip pain when sleeping is a common concern — especially for people who naturally prefer the side-lying position.
Some individuals try adjusting their sleep setup, like placing a pillow between their knees to keep the hips and spine more aligned, which is the recommended side lying sleep position. While behavioral modifications like this can help, they don’t always address the underlying reason symptoms started in the first place.
Outer hip pain at night can have several potential contributors. While the exact cause can’t be determined without an in-person evaluation, understanding the common factors involved can help you decide what next steps may be appropriate.
Let’s take a closer look.
Where Is Side-Lying Hip Pain Usually Felt?
Most people describe the discomfort on the outside of the hip, near the bony area.
Pain in this region does not automatically mean there is damage to the hip joint. Often, surrounding muscles, tendons, or even the lower back may influence symptoms.
Because hip pain at night can have multiple contributing factors, a movement assessment is important before making assumptions.
Common Contributors to Hip Pain When Sleeping on Your Side
1. Sensitivity in the Tendons Around the Hip
The muscles along the outside of the hip play an important role in stabilizing the pelvis during walking, running, and stair climbing.
If these tissues are not tolerating load well, pressure from lying directly on that side may increase discomfort.
Some people also notice:
Pain with longer walks
Discomfort going up stairs
Tenderness when pressing on the outer hip
Symptoms can vary significantly from person to person.
2. Irritation of Tissue That Cushions the Hip
There are small fluid-filled sacs around the hip that reduce friction between structures. In some cases, irritation in this region may contribute to pain when lying on the affected side.
However, outer hip pain is often multifactorial rather than caused by one single structure.
3. Referral From the Lower Back
Sometimes pain that feels like hip pain when sleeping on your side may be influenced by the lower back.
The lumbar spine and surrounding nerves can refer discomfort into the outer hip region, which is why a full-body movement assessment is helpful rather than focusing only on one area.
Is Your Mattress Causing Hip Pain at Night?
A very firm mattress can increase compression on the outside of the hip. However, mattress changes alone don’t always resolve persistent hip pain.
If symptoms continue despite position changes, it may be helpful to look at:
Strength
Mobility
Activity levels
Movement patterns
When Should You Consider an Evaluation for Hip Pain?
If you are experiencing:
Ongoing hip pain when lying on your side
Pain that wakes you up at night
Discomfort lasting more than a few weeks
Limitations with walking, exercise, or daily tasks
It may be helpful to speak with a healthcare professional.
Because every individual is different, an in-person assessment is the best way to determine what may be contributing in your specific situation.
How Physical Therapy Can Help
A physical therapy evaluation looks at:
Hip strength
Pelvic stability
Movement mechanics
Spinal mobility
Activity demands
The goal is to identify potential contributing factors and create a plan tailored to the individual.
At our clinic, we offer free 15-minute injury screenings to help determine whether a full evaluation would be beneficial. If you’re unsure what’s causing your hip pain at night, getting clarity can be a helpful first step.
Call us or request an appointment online to get started.
📍 3538 Calumet Avenue, Valparaiso, IN 46383
📞 (219) 316-7470