This is a list of side effects listed by Novartis. It does mention fever, as a side effect, but not specifically night sweets
Take Care Pete
Before taking TASIGNA

Talk to your doctor or pharmacist about all other medication(s) you may be taking, including prescription medicines, over-the-counter medicines, vitamins, and herbal supplements, since they may affect how TASIGNA works and increase your chance of serious and life-threatening side effects.

Tell your doctor if:

You have a heart disorder or are taking medication for the heart
You have an irregular heartbeat
You have QT prolongation or a family history of it
You have liver problems
You know that you suffer from low blood levels of electrolytes, such as potassium, magnesium, or calcium
You have a pancreas disorder
Had a surgical procedure involving the removal of the entire stomach (total gastrectomy)Also tell your doctor if you are pregnant, breast-feeding, or lactose-intolerant. The TASIGNA capsules contain lactose. Most patients who have mild or moderate lactose intolerance can take TASIGNA
Call your doctor right away if you faint or have an irregular heartbeat while taking TASIGNA.

These can be symptoms of QT prolongation.

Call your doctor immediately if you experience any of these symptoms.

Serious side effects

TASIGNA is sometimes associated with serious side effects, some symptoms of which include:

Feeling lightheaded, fainting, or having an irregular heartbeat
Unexplained bleeding or bruising
Blood in urine or stool
Unexplained weakness
Yellow skin and eyes
Shortness of breath
Swelling of hands, ankles, feet, or face
Sudden stomach area pain with nausea and vomiting
Sudden headache, changes in your eyesight, not being aware of what is going on around you, and becoming unconscious
Common side effects

Most patients experience side effects at some time. Some common side effects you may experience include:

Low blood count
Rash
Nausea
Fever
Stomach (abdominal pain)
Headache
Itching
Muscle and joint pain
Tiredness
Diarrhea
Constipation
Back pain
Muscle spasms
Weakness
Hair loss
Runny or stuffy nose, sneezing, sore throat
Cough
Be sure to tell your doctor or pharmacist if you have any side effects during treatment with TASIGNA.

Tell your doctor if you are pregnant or planning to become pregnant. Tasigna may harm your unborn baby. If you are able to become pregnant, you should use effective birth control during treatment with Tasigna. Talk to your doctor about the best birth control methods to prevent pregnancy while you are taking Tasigna.