Sleeping with a strained back muscle is mostly about finding a position that keeps your spine neutral and taking a few steps before bed to calm the muscle down. The good news: minor back strains typically heal within a few weeks, and moderate strains within a few months. What you do at night can either speed that process along or set it back, so getting your sleep setup right matters.
Best Sleeping Positions for a Back Strain
Side sleeping with a pillow between your knees is one of the most reliable positions for a strained back. Draw your legs up slightly toward your chest and place a firm pillow between your knees. This keeps your spine, pelvis, and hips aligned and takes pressure off the injured muscle. A full-length body pillow works well here if you tend to shift around at night, since it keeps your legs from drifting apart as you sleep.
Sleeping on your back is another solid option. Place a pillow or rolled towel under your knees to maintain the natural curve of your lower back. Without that support, your back flattens against the mattress and the strained muscle has to work harder to stabilize your spine. A small, flat pillow tucked directly under your lower back can add extra support if knee elevation alone isn’t enough.
Stomach sleeping is the least ideal position for a back strain because it forces your lumbar spine into extension and puts constant stress on the injured area. If you simply can’t fall asleep any other way, placing a thin pillow under your hips and lower abdomen can reduce some of that pressure. But if your strain is acute, it’s worth training yourself to start the night on your side or back, even if you end up shifting later.
Pre-Sleep Stretches That Help
Gentle stretching before bed can reduce overnight muscle tension and make it easier to find a comfortable position. Aim for slow, controlled movements and hold each stretch for about five seconds. Repeat each one two to three times.
- Knee-to-chest stretch: Lie on your back with your knees bent and feet flat on the floor. Pull one knee toward your chest with both hands, tighten your abdominal muscles, and press your spine into the floor. Hold for five seconds, then switch legs.
- Lower back flexibility exercise: In the same starting position, tighten your belly muscles so your lower back lifts slightly off the floor. Hold five seconds, then relax. Next, flatten your back by pulling your bellybutton toward the floor. Hold five seconds, relax. Start with five reps and build up over time.
- Bridge: From the same position, tighten your core and glutes, then raise your hips until your body forms a straight line from knees to shoulders. Hold long enough to take three deep breaths, then lower back down.
When you first start these, keep the numbers low. If any movement increases your pain rather than creating a mild stretch sensation, skip it. The goal is to relax the muscle, not challenge it.
Heat, Ice, and Pain Relief Before Bed
Applying heat to your lower back for 15 to 20 minutes before bed can loosen the strained muscle and increase blood flow to help it heal. Keep the temperature between 92 and 100 degrees Fahrenheit, which is roughly the range of a warm bath or a heating pad on a low-to-medium setting. Don’t exceed 20 minutes per session, and place a cloth between the heat source and your skin.
Ice is more useful in the first 48 to 72 hours after the initial injury, when swelling is at its peak. After that early window, heat generally provides more relief for muscle strains. Some people find alternating between the two helpful, but for a pre-sleep routine, heat tends to be more relaxing and better for winding down.
Over-the-counter anti-inflammatory medications can also help you get through the night. Ibuprofen (200 mg tablets, one to two every four to six hours, up to 1,200 mg per day) or naproxen sodium (220 mg tablets, one to two every eight to twelve hours, up to 660 mg per day) can reduce both pain and inflammation. Taking a dose about 30 minutes before bed gives it time to kick in as you’re settling into position.
Your Mattress Matters
A medium-firm mattress consistently performs best for back pain in clinical research. A systematic review in the Journal of Orthopaedics and Traumatology found that medium-firm mattresses improve sleep quality, promote spinal alignment, and reduce the risk of developing or worsening low back pain. These benefits held regardless of age, weight, or body type, and they got progressively better over the first four weeks of use.
Mattresses that are too soft let your hips and shoulders sink in, pulling your spine out of alignment. Mattresses that are too firm create pressure points and don’t conform to your spine’s natural curves. If you’re not in a position to replace your mattress, a medium-firm mattress topper can bridge the gap. The key is that your spine should maintain roughly the same gentle curve it has when you’re standing upright.
Getting Out of Bed Without Re-Aggravating the Strain
How you get out of bed in the morning can undo a night of careful positioning. The safest method is the log roll technique, which keeps your spine from twisting during the transition from lying down to standing up.
Start by sliding yourself toward the edge of the bed while still on your back. Bend your knees and plant your feet flat. Roll onto the side closest to the edge, keeping your knees together and your shoulders in line with your hips. Don’t twist. Once you’re on your side, use both hands to push yourself up into a sitting position, letting the weight of your legs swinging off the bed help you move. Sit for a moment, take a few breaths, and when you’re ready, lean forward and use your legs and arms to push yourself to standing. Tighten your stomach muscles as you rise to keep your back straight.
This feels overly cautious when you’re not in much pain, but the morning is when a strained back is at its stiffest. That stiffness means less natural muscle protection, which makes a careless twist more likely to flare things up again.
Signs Your Strain Needs Medical Attention
Most back strains improve steadily with rest, positioning, and gentle movement. But certain symptoms signal something more serious than a muscle injury. If your back pain causes new bowel or bladder control problems, or if you develop numbness or tingling that spreads down one or both legs, those warrant urgent medical evaluation. Progressive weakness in your legs, pain that wakes you from sleep and doesn’t respond to position changes, or pain that follows a significant injury like a fall or car accident are also reasons to get checked promptly rather than waiting it out.