Your exercise prescription = REST
Today is a scheduled rest day so make the most of it.
I would suggest a flexibility component today to elongate short tight muscles and tendons. Stretching is by no means a comfortable, enjoyable or a pleasurable exercise but done properly you will feel AMAZING afterwards. Stretch your body in weird and wonderful ways, challenging your range of movement and remember your muscles wrap around your joints and are not just straight. So you may have to twist your foot in that hamstring stretch or change the angle of your triceps in a triceps stretch to release the tension in the right places for you.
Enjoy more flexibility for more power and free movement.