Try to avoid artificial perfumes and fragrances as they do not provide the same relaxing qualities as pure essential oils do and can also cause irritation. Lavender oil is well known for its sleep inducing qualities and rose oil has a lovely sweet relaxing fragrance. Geranium is another comforting fragrance and vanilla is always a good idea too and it is cheap and relaxing.
Add in all of your favorite bath products, and make sure they are all natural. Try bath salts, essences, bubble-baths (you can also turn shampoo and conditioner into bubble bath and save time washing your hair), etc. This suggestion is definitely optional.
Add bath salts in the bath while the water is running, to dissolve the salts in the water.
Epsom salts are inexpensive and a terrific aid for soothing sore muscles