• Sleep studies - by keeping a sleep dairy and asking your partner to note how many times and how much loud you are snoring.

• Polysomnography - shows pauses in breathing that are followed by drops in blood oxygen and increases in blood carbon dioxide. It measures multiple physiologic variables associated with sleep like oxygen saturation, electrocardiography, air flow, respiratory effort, limb movement, eye and jaw muscle movement, and brain electrical activity.

• Multiple Sleep Latency Test (MSLT) - It is used to measure the time it takes from the start of a daytime nap period to the first signs of sleep and gives result in MSLT scores as shown below:
                    Minutes                   Sleepiness

                           0-5                    Severe
                         5-10                    Trouble some
                       10-15                     Manageable
                       15-20                     Excellent