The redesigned SmartGoggles deliver a science-backed combination of compression massage heat and vibration therapies to enhance relaxation reduce stress relieve tension headaches ease eye strain and improve your sleep - in just 15 minutes or less! Now lighter quieter and with a 100% black-out design the SmartGoggles are more comfortable than ever and create a perfect environment for relaxation no matter where you are. Plus the innovative SmartRelax treatment uses a proprietary biometric sensor to create personalized vibration patterns based on your heart rate to further promote relaxation and help lower your heart rate.