diff --git a/modules/bullet/rigid_body_bullet.cpp b/modules/bullet/rigid_body_bullet.cpp
index fc4e1d57def0..a4f9affa954b 100644
--- a/modules/bullet/rigid_body_bullet.cpp
+++ b/modules/bullet/rigid_body_bullet.cpp
@@ -138,8 +138,8 @@ void BulletPhysicsDirectBodyState3D::apply_torque_impulse(const Vector3 &p_impul
 	body->apply_torque_impulse(p_impulse);
 }
 
-void BulletPhysicsDirectBodyState3D::set_sleep_state(bool p_enable) {
-	body->set_activation_state(p_enable);
+void BulletPhysicsDirectBodyState3D::set_sleep_state(bool p_sleep) {
+	body->set_activation_state(!p_sleep);
 }
 
 bool BulletPhysicsDirectBodyState3D::is_sleeping() const {
diff --git a/modules/bullet/rigid_body_bullet.h b/modules/bullet/rigid_body_bullet.h
index 95491b1e626d..420b5cc443ce 100644
--- a/modules/bullet/rigid_body_bullet.h
+++ b/modules/bullet/rigid_body_bullet.h
@@ -117,7 +117,7 @@ public:
 	virtual void apply_impulse(const Vector3 &p_pos, const Vector3 &p_impulse);
 	virtual void apply_torque_impulse(const Vector3 &p_impulse);
 
-	virtual void set_sleep_state(bool p_enable);
+	virtual void set_sleep_state(bool p_sleep);
 	virtual bool is_sleeping() const;
 
 	virtual int get_contact_count() const;
diff --git a/servers/physics_3d/body_3d_sw.h b/servers/physics_3d/body_3d_sw.h
index b553cf067091..96e8c61020b6 100644
--- a/servers/physics_3d/body_3d_sw.h
+++ b/servers/physics_3d/body_3d_sw.h
@@ -421,7 +421,7 @@ public:
 	virtual void apply_impulse(const Vector3 &p_pos, const Vector3 &p_j) { body->apply_impulse(p_pos, p_j); }
 	virtual void apply_torque_impulse(const Vector3 &p_j) { body->apply_torque_impulse(p_j); }
 
-	virtual void set_sleep_state(bool p_enable) { body->set_active(!p_enable); }
+	virtual void set_sleep_state(bool p_sleep) { body->set_active(!p_sleep); }
 	virtual bool is_sleeping() const { return !body->is_active(); }
 
 	virtual int get_contact_count() const { return body->contact_count; }
diff --git a/servers/physics_server_3d.h b/servers/physics_server_3d.h
index a2f08b3ed878..8ea8b2245596 100644
--- a/servers/physics_server_3d.h
+++ b/servers/physics_server_3d.h
@@ -70,7 +70,7 @@ public:
 	virtual void apply_impulse(const Vector3 &p_pos, const Vector3 &p_j) = 0;
 	virtual void apply_torque_impulse(const Vector3 &p_j) = 0;
 
-	virtual void set_sleep_state(bool p_enable) = 0;
+	virtual void set_sleep_state(bool p_sleep) = 0;
 	virtual bool is_sleeping() const = 0;
 
 	virtual int get_contact_count() const = 0;