Hello,

  I am new to this board and just had a sleep study completed. I am a 42 year old female and have had insomnia for years.  I also have PVC's, which are premature ventricular contractions.  I take Toprol xl 50 mg.  I take this at night because it makes me sleepy.  I recently saw a neurologist who (along with my cardiologist) wanted me to do a sleep study.  The cardiologist wanted to rull out apnea as a possible cause of my PVC's and Neuro wants to see why I do not sleep well.  Neuro suggested melatonin 5mg at night.  I feel I am sleeping better with this addition.  I do unfortunately still wake up tired like I could just go right back to sleep, have headaches, memory issues, irritability, lack of concentration.  Here are the reults:

Sleep efficiency=85%

Sleep onset latency=34.2 mins

Stage REM latency=128 mins

Wake after sleep onset=30 mins.

Total sleep time=369 minutes

Number of awakenings=22

Stage 1=32 mins (8%)

Stage 2=239.5 mins (60%)

Stage 3=16 mins (4%)

REM 81 mins (20%)

SaO2 average awake=96%

lowest SaO2=93% (4 minutes)

Respiratory Events 

Apnea=0 events

Hypopnea-10 (3 rem and 7 non rem), index-1.6 per hour, average duration 31 and longest 153

AHI=sleep 1.6

RDI=1.6

HEART

Average heart rate during sleep=56

fastest heart rate during sleep=120

fastest heart rate during time in bed 197

Arousal summary

Respiratory index 1.3

leg movements .3

snoring0.0

spontaneous=23

Leg Movements=0

The recommnedation is that I do not warrant pap therapy, but possible treatments could include an anti snore device.  I am confused by this because there is no evidence of snoring according to the arousal summary for snoring.  They do suggesta MSLT, which I have done in the past.  It was inconclusive as I never fell asleep due to insonmia.  I feel the only reason I slept for this one is the Toprol makes me tired and the Melatonin helped!My questions are: If I do not have apnea, why am I so tired every day?  I always feel like I could go to sleep.  I have never woke up feeling refreshed, ever!  Why am I waking up so much?  What is causing this?    ANy suggestions, thoughts, etc are appreciated.