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Valley Sleep Center provides sleep studies in Phoenix Arizona.

For most insurance plans, you do not need a primary care referral to meet with one of our sleep doctors.   If you need an appointment for a sleep study, please call us at 480-830-3900 or email us.  Here are the different types of sleep studies available at Valley Sleep Center.

  • Adult PSG – An adult polysomnography is a general monitoring including brain activity, eye movement, muscle activity, and heart rhythm. This study is performed without the initiation of CPAP therapy during the night.
  • Pediatric PSG –A pediatric polysomnography is a general monitoring including brain activity, eye movement, muscle activity, and heart rhythm. This study is performed without the initiation of CPAP therapy during the night. This study can include ETCO2 monitoring.
  • Split PSG – A split polysomnography is a test that is usually ordered for adults as a first-time study or if a patient has not been evaluated for several years and does not use their therapy at night. This study monitors many body functions including brain activity, eye movement, muscle activity and heart rhythm during sleep. If the patient qualifies and presents moderate or severe sleep apnea during the first part of the night, the patient will be placed on continuous Positive Airway Pressure (PAP) therapy in an attempt to determine the optimal pressure that will eliminate sleep disturbances.
  • Titration PSG – A titration is performed to determine the necessary CPAP pressure required to alleviate apnea or other sleep disorders such as snoring. This study monitors the same body functions as the PSG while the patient is using CPAP.
  • This test is ordered once a patient has already qualified for CPAP therapy, but requires that the patient is a routine user of their machine or qualified for therapy within the last two years.
  • MSLT – Multiple Sleep Latency Testing (MSLT) is a daytime nap study that tests for narcolepsy or other forms of hypersomnia. This study may also be performed in conjunction with a PSGthe night before. This test is to assess how quickly a person is able to fall asleep during the day after a typical night of sleep.
  • MWT – The multiple of wakefulness test is used to measure how alert a person is during the day. The patient sits in an isolated room without noise, bright light or any activity. A low wattage night light is placed in the room and the patient is to try and remain awake for a period of 20 minutes with two hour intervals.
  • This test is commonly ordered for public transportation and safety professions to ensure the person is able to remain alert while performing their jobs.
  • This test is used to monitor a patient’s oxygen levels and heart rate at night. This test may be ordered to assess current oxygen use in the home or to evaluate the need for oxygen at night.
  • ApneaLink – ApneaLink is used to monitor a patient’s oxygen levels and heart rate during the night. An ApneaLink is similar to a nocturnal oximetry; however, the ApneaLink provides doctors with additional screening signs that indicate the possibility of sleep apnea at night.
  • Follow-up Consultation – Patients may follow up with our board certified sleep specialists after their sleep study is performed. Our sleep specialists may then make appropriate treatment recommendations and order any therapy, if needed.
Client Reviews
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"Great staff, they make you feel so at home. Every medical facility should be this nice. Felt like a nice hotel. Someone has great taste in decorating. Thanks for making us feel at home."


Steve N.


San Diego, CA

"I recommend them highly!! I took my 2 year old daughter for a sleep study and was very impressed. Our sleep technician was amazing with her, very patient and kind. The DVD we brought to watch while getting her hooked up got stuck in the TV and they vowed to return it. We got a call the next day checking on our daughter and saying how sweet she was, they mentioned the DVD. Several days later, we received the DVD plus a new copy of the Lion King with a nice note. They are very good at what they do and if they can make a 2 year old feel at ease, they can probably do the same with anyone!!"


Anthea S.


Tempe, AZ

"I was especially impressed with Andrew the Respiratory Therapist who reviewed my study with me and answered my questions. Andrew thoroughly explained everything about the Cpap machine-from start to finish. I never felt rushed and was assured I could contact him with any additional questions or needs. Andrew told me he would follow up with a call in a week and he did. I believe this center performed the study appropriately and the added benefit of having Andrew teach me about the machine and what to expect was a bonus."


Candace M.


Scottsdale, AZ