There is one other situation that a gentle immobilization strategy will help with Carpal Tunnel Symptoms. If a person curls their wrist significantly during sleep and presses the back of the hand up against their head or chest in the fetal type position, this can cause stress on the wrist and aggravate Carpal Tunnel. When the wrist is held at a right angle, this narrows the Carpal Tunnel and puts more pressure on the Median Nerve. People suffering with CTS should avoid this position.
However, it is best to steer clear of the wrist splints and follow a more enlightened immobilization method to manage sleep posture and carpal tunnel symptoms.
It is best to retrain yourself to sleep in a different position if possible. You can have a family member or bed partner observe you when sleeping and help you utilize pillows to maintain sleep positions that prevent you from bending your wrist in an aggressive way. If you cannot retrain yourself from this sleep habit, then you may want to do what other patients have found helpful.
You simply find two small, firm pillows that you tape together with duct tape and sandwich your hand in between the two pillows to keep your hand and wrist in a neutral position during sleep. Patients report that using this “pillow sandwich approach” prevents them from curling their wrist at a right angle during sleep.