# Sleepers Stretch - Canonical: https://fitwill.app/exercise/11374/sleepers-stretch/ - Media ID: 11374 - Primary muscle: Shoulders - Body part: Shoulders - Equipment: Body Weight - Video: https://fitwill.app/videos/11374/sleepers-stretch.mp4 ## Description The Sleeper Stretch is a side-lying shoulder mobility drill that targets the back of the shoulder, most notably the infraspinatus and teres minor along with the posterior joint capsule. You lie on the side of the shoulder you want to stretch, stack that shoulder under you, and use your free hand to gently press the top arm's forearm down toward the floor into internal rotation. The name comes from the position: you look like you're sleeping on your side while performing the stretch. This stretch is a staple in shoulder health routines, particularly for people who press, throw, or swim a lot. Overhead athletes and regular bench pressers often develop tightness in the posterior shoulder, which can pull the shoulder blade out of its optimal position and limit smooth rotation of the arm. The Sleeper Stretch gives that tissue a controlled, low-load stretch without needing any equipment beyond a floor surface. Setup is where most people go wrong, so it deserves attention. Lying on the involved shoulder blocks the shoulder blade from compensating by tipping forward, which forces the stretch into the actual shoulder joint instead of letting the blade fake the motion. The stretching arm should be flexed to roughly ninety degrees at the shoulder and bent at the elbow, with the shoulder and elbow stacked in a straight vertical line so you're isolating rotation rather than a combination of movements. To perform it well, use your free hand to grip the wrist or forearm of the bottom arm and rotate it slowly toward the floor, as if you were trying to lay the back of that hand down. The stretch should be felt deep in the back of the shoulder, never sharp or pinching at the front. Hold the end position for twenty to thirty seconds while breathing steadily, then ease off slowly. Two to three rounds per side is plenty. The Sleeper Stretch fits naturally into a warm-up before upper body training, a cool-down after pressing or pulling sessions, or a daily mobility habit for desk workers whose shoulders sit in a forward, internally rotated posture. It's commonly paired with cross-body arm stretches and band external rotation work for a balanced posterior shoulder routine. A few safety points matter here. This stretch places rotational stress on the shoulder, so anyone with a history of shoulder instability, dislocation, or a current flare-up of pain should skip it or get clearance from a physical therapist first. Never bounce or crank the arm down, and if you feel a pinching sensation at the front of the shoulder rather than a stretch at the back, reduce the range or adjust your arm angle before continuing. ## Instructions 1. Lie on your side on the floor or a mat, with the shoulder you want to stretch underneath your body. 2. Bend your knees slightly and stack them for a stable base, then adjust your torso so the bottom shoulder is directly beneath you and squared to the floor, not rolled forward or back. 3. Bring the bottom arm straight out in front of your chest and raise it to about shoulder height, then bend the elbow to roughly ninety degrees so the forearm points up toward the ceiling. 4. Rest the side of your head on the floor or a small cushion, and keep your neck relaxed. 5. Reach your top hand across and grip the wrist of the bottom arm. 6. Slowly press the bottom forearm down toward the floor, rotating the shoulder inward until you feel a firm stretch deep in the back of the shoulder. 7. Hold the end position for twenty to thirty seconds, breathing slowly and letting the shoulder release a little more with each exhale. 8. Ease the pressure off gradually rather than letting go suddenly, and return the forearm to vertical. 9. Repeat for two to three repetitions, then roll over and stretch the other shoulder if needed. ## Tips & Tricks - If you feel a pinch at the front of the shoulder instead of a stretch behind it, lower the stretching arm slightly below shoulder height before pressing down. - A common mistake is letting the torso roll backward as you press the forearm down, which robs the shoulder of the stretch. Keep your chest facing the floor. - Don't let the shoulder blade tip forward off the floor; the whole point of lying on that side is to pin the blade so the rotation happens in the joint. - Press on the forearm, not the hand or elbow. Pushing on the hand bends the wrist and pushes on the elbow loads the joint rather than rotating it. - Warm the shoulder up first with a few arm circles or light band work. Stretching a cold shoulder into rotation tends to feel grabby and restrictive. - If the floor position is uncomfortable on the bottom arm, place a small folded towel under the upper arm to keep it level instead of forcing full height. - Keep the stretch intensity around a five or six out of ten. A white-knuckle stretch often makes the muscle guard and tighten rather than lengthen. - Never let the elbow drift behind the line of the shoulder as you press down; that shifts stress into the front of the joint capsule. ## Frequently Asked Questions ### What muscles does the Sleeper Stretch target? It primarily stretches the infraspinatus and teres minor on the back of the shoulder, along with the posterior joint capsule. The posterior deltoid gets some secondary stretch as the arm rotates inward. ### Why does the Sleeper Stretch have to be done lying on your side? Lying on the stretched shoulder pins the shoulder blade to the floor, which stops it from compensating and tipping forward. That forces the rotational range to come from the shoulder joint itself, where the tightness actually lives. ### How long should I hold the Sleeper Stretch? Hold each rep for twenty to thirty seconds and complete two to three reps per side. If you're using it as part of a daily mobility routine, consistency over weeks matters more than a single long hold. ### Is the Sleeper Stretch safe if my shoulder clicks when I press the arm down? Painless clicking is usually fine, but reduce the range so the movement stays comfortable. If the clicking comes with pain, catching, or a pinching sensation at the front of the shoulder, stop and have it assessed before continuing. ### Can beginners do the Sleeper Stretch, or is it only for overhead athletes? Beginners can do it safely by using a gentler press and a shorter range. That said, it's especially valuable for throwers, swimmers, and regular bench pressers who accumulate posterior shoulder tightness from repeated pressing or throwing. ### What's the most common mistake in the Sleeper Stretch? Rolling the torso backward while pressing the forearm down. This turns it into a chest and spine rotation and takes the tension off the back of the shoulder. Keep your chest facing the floor throughout the press. ### What can I use instead of the Sleeper Stretch if lying on my side bothers my shoulder? A standing cross-body arm stretch or a doorway internal rotation stretch at the same height work similar tissue. Neither blocks the shoulder blade as effectively, so keep the range modest and focus on feeling the stretch behind the shoulder. ### Should I do the Sleeper Stretch before or after training? It works in both slots. Use a shorter, gentler version in a warm-up before pressing or overhead work, and longer held reps after training or in the evening as a dedicated mobility session. ### How hard should I press the forearm down during the Sleeper Stretch? Aim for a moderate stretch, roughly a five or six out of ten. Pressing hard usually triggers the muscle to guard and tighten, and cranking into end range on a rotation-sensitive joint is asking for trouble. ### Who should avoid the Sleeper Stretch altogether? Anyone with a history of shoulder dislocation or diagnosed instability should not force internal rotation in this position, and the same goes for a fresh rotator cuff strain. Get clearance from a physical therapist before adding it back in.