Sore muscles make it harder to fall asleep and stay asleep, but a few targeted strategies can break the cycle. Pain triggers inflammation that interferes with your body’s natural sleep signals, and poor sleep in turn lowers your pain threshold, making soreness feel worse the next day. The good news: you can interrupt this loop with the right sleeping position, some simple pre-bed routines, and a few evidence-backed recovery tools.
Why Soreness Gets Worse at Night
During the day, movement and distraction keep muscle soreness in the background. At night, you lose both. Lying still allows inflammation to build around damaged muscle fibers, and without anything to occupy your attention, your brain registers pain more intensely. Inflammatory substances in your body also fluctuate with your sleep-wake cycle, and disrupted sleep raises levels of those same inflammatory compounds, creating a feedback loop where pain worsens sleep and poor sleep worsens pain.
Sleep deprivation also impairs your brain’s ability to dampen pain signals through emotional regulation pathways. Even one rough night can lower your pain tolerance the following day, which is why a second night of post-workout soreness often feels worse than the first if you didn’t sleep well.
Best Sleeping Positions for Sore Muscles
Your sleeping position determines how much pressure lands on tender muscle groups. Small adjustments with pillows can make a significant difference.
If you sleep on your side, draw your knees up slightly toward your chest and place a pillow between your legs. This aligns your spine, pelvis, and hips, reducing strain on sore lower back muscles, glutes, and hip flexors. A full-length body pillow works well if you tend to shift positions throughout the night.
If you sleep on your back, slide a pillow under your knees. This relaxes the muscles along your spine and maintains the natural curve of your lower back. For extra support, tuck a small rolled towel under your waist. Back sleeping is generally the best option when your legs are sore because it distributes your weight evenly and keeps pressure off your quads and hamstrings.
Stomach sleeping puts the most strain on your back and neck, but if it’s the only way you can get comfortable, place a pillow under your hips and lower stomach to reduce the arch in your spine.
Heat Therapy Before Bed
Applying heat to sore muscles before sleep is one of the most effective options for pain relief, especially in the first 48 hours after exercise. A network meta-analysis comparing cold and heat treatments for delayed onset muscle soreness found that heat packs were the most effective intervention for pain relief within 24 and 48 hours post-exercise, outperforming cold water immersion, contrast therapy, and cryotherapy.
A warm bath, heating pad, or microwavable heat wrap applied for 20 to 30 minutes before bed increases blood flow to damaged tissue and relaxes tense muscles. Longer, low-intensity heat exposure (such as adhesive heat wraps worn for several hours) may provide even more relief, though the research on exact duration is still limited. Heat also has a natural sedative quality: the rise and subsequent drop in skin temperature mimics the thermal pattern your body uses to initiate sleep.
Cold therapy has its place too, particularly if soreness persists beyond 48 hours. Cold packs applied for at least 10 to 20 minutes, or cold water immersion at 11 to 15°C for 11 to 15 minutes, can numb deep aching that keeps you awake. But for most people dealing with typical post-workout soreness at bedtime, heat is the better choice.
Gentle Stretching Before Sleep
A short static stretching routine before bed can ease muscle tension and improve your range of motion overnight. Static stretching and foam rolling both increase flexibility over time, but static stretching produces faster results. In studies lasting four weeks or less, static stretching significantly increased joint range of motion while foam rolling showed no measurable improvement over the same period.
For a pre-sleep routine, 5 to 10 minutes of gentle static stretches targeting your sorest muscle groups is enough. Hold each stretch for 30 to 60 seconds without bouncing. Focus on breathing slowly and deeply. The goal isn’t to push through pain but to lengthen the muscle just enough to release tension. Foam rolling before stretching can help if you’re dealing with specific knots or trigger points, but the stretching itself does the heavier lifting for short-term relief.
Progressive Muscle Relaxation
Progressive muscle relaxation is a technique where you systematically tense and then release each muscle group, starting from your feet and working up to your head. It sounds simple, but the research behind it is striking. In a randomized controlled trial, patients practicing progressive muscle relaxation saw their pain scores drop from 9.4 out of 10 to 1.5 within three days, while the control group only dropped to 6.1. Sleep quality scores in the relaxation group were roughly 65% higher than the control group over the same period.
That study involved surgical patients with more severe pain than typical muscle soreness, but the mechanism applies broadly. The technique trains your nervous system to release held tension you may not even be aware of, and the rhythmic focus on each body part acts as a form of mindfulness that quiets the mental alertness that pain creates. Free guided sessions are available on most meditation apps and take about 15 minutes.
Compression Garments Overnight
Wearing compression clothing on sore muscles while you sleep can speed recovery. In a study on quadriceps fatigue, participants who wore compression garments overnight recovered approximately 10% more strength by 24 hours compared to those who slept without them. The benefit appears to come from improved local blood flow and reduced swelling rather than any neurological effect.
Compression sleeves, tights, or socks designed for recovery should feel snug but not restrictive. If you notice numbness, tingling, or increased discomfort, the garment is too tight. This approach works best for the legs, where gravity naturally encourages fluid pooling overnight.
Over-the-Counter Pain Relief
If soreness is severe enough to keep you awake, a simple pain reliever can help, but your choice matters for sleep quality. Acetaminophen at a standard dose (650 mg) taken at night had no measurable impact on any sleep parameter in studies of healthy volunteers. It didn’t change deep sleep, REM sleep, total sleep time, or the number of times people woke up.
Ibuprofen is a bit more complicated. A single 400 mg dose increased the time spent in deep sleep but reduced sleep efficiency by increasing wakefulness. Aspirin at 650 mg also reduced sleep efficiency. If your primary goal is to manage pain without disrupting sleep, acetaminophen is the cleaner option. Ibuprofen has stronger anti-inflammatory effects, which may help more with the underlying soreness, but it can make your sleep lighter and more fragmented.
Nutrition and Supplements
Tart cherry juice has become a popular recovery drink, and the evidence supports it, with a catch. Drinking two servings daily (either 237 to 355 ml of juice from fresh-frozen Montmorency cherries, or two 30 ml servings of concentrate) helps muscle function recover faster after exercise. But the key finding is that it only works if you start drinking it several days before the exercise that causes soreness. Studies where participants began on the day of exercise or afterward showed no benefit. Each serving provides the equivalent of roughly 100 to 180 cherries’ worth of compounds that reduce muscle damage.
Magnesium glycinate, taken at 200 to 400 mg daily with a meal or before bed, may support both muscle relaxation and sleep. Magnesium plays a direct role in nerve and muscle function, and glycine (the amino acid it’s bound to) has its own calming effects. The sleep benefits are most pronounced in people whose magnesium levels are already low, which is common in active individuals who sweat heavily. Some studies show small improvements in sleep quality and fewer nighttime awakenings, though the evidence is still developing.
Staying well hydrated throughout the day also matters. Dehydrated muscles cramp more easily at night, and even mild dehydration can increase pain sensitivity.
Your Sleep Environment
A mattress that’s too firm or too soft can amplify muscle soreness. Research consistently points to medium-firm mattresses as the best option for pain relief and sleep quality, regardless of your age, weight, or body type. In one study, people who switched from standard spring mattresses to medium-firm options reported less back pain, less shoulder pain, less spinal stiffness, and better sleep efficiency within 28 days. Latex mattresses distribute body pressure particularly well, reducing pressure peaks at the shoulders and hips where sore muscles are most affected.
If replacing your mattress isn’t realistic, a mattress topper can help. Foam or air-filled overlays placed on top of an existing mattress have been shown to reduce nighttime awakenings and improve both pain and sleep quality in people with chronic discomfort. Keep your room cool (around 18°C or 65°F), as a slightly cool environment supports the natural body temperature drop that initiates sleep and can reduce the inflammatory heat that builds in sore tissue.