Enjoying a nice bath!
Step 1:
Develope a bathing schedule. Bearded dragons in the wild obtain much of their moisture from the morning dew that gathers on plants. If you mist your dragon's cage every day, wash its fruits, and vegetables thoroughly, and let it drink from a water dropper, you need not bathe your dragon every day. If you don't mist them, however, they may require a daily bath. Dragons that are close to shedding, or in the process of doing so, may require more bath time.

Step 2:
Ready the bath. Bearded dragons can be bathed in a clear container, although some may enjoy a dip in the bathroom sink just as easily.I happen to bathe them in the tub,lol. As lizards, bearded dragons regulate their body temperature according to the temperature outside, so the water should measure around 95 to 99 degrees (very warm, but not hot). Keep the level of water only about an inch deep, or about their shoulder-level, so that your dragon can swim gently and freely without panicking.

Step 3:
Let your dragon bathe anywhere between 10 to 30 minutes. If the dragon is shedding, you may want to consider scrubbing it lightly with a soft, sterilized toothbrush, particularly on the feet and the base of the tail (while carefully avoiding the cloaca, its urinary and fecal orifice). Many bearded dragons take the opportunity to defecate in the water. As soon as this occurs, scoop out the offending deposit with a spare container so that it doesn't contaminate the bath. A small fish net usually works best. 

Step 4:
Keep the dragon comfortable. Some may enjoy a bath more than others. Dragons that get more stressed from a bath might appreciate a rock in one corner of the tub, where they can have a break. You may find that your dragon's belly will inflate, but they have simply swallowed some air so that they can remain buoyant. As the water cools, you may have to add hotter water to keep the temperature at a comfortable level.

Step 5:
Remove the dragon from the bath and rub it down gently with a soft cloth. After- wards, return it to its enclosure, empty and sterilize the bathing container.

And just as a little extra I put little colorful toy's sometime's ,it kinda help's them to feel more comfortable. It give's them a type of familiarity,something to look forward to.