B757 pilot is fatigued and falls asleep during cruise.

Attributes
ACN	705724
Time
Date	200608
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : zdc.artcc
State Reference	VA
Altitude	msl single value : 38000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zdc.artcc
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain
Qualification	pilot : atp
Experience	flight time last 90 days : 220 flight time total : 17000 flight time type : 8000
ASRS Report	705724
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	non adherence : company policies non adherence : far
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

While at cruise; I fell asleep for several seconds repeatedly. Because of this we missed a frequency change and change of ctrs. Contributing to this was my inability to get enough sleep for 2 days prior to the event and an all-night flight the night before this. My first layover was 22 hours long but I could only get 6 hours sleep and none immediately before the all-night flight. My second layover was about 10 hours long but I could only get 4 hours rest.

Original NASA ASRS Text

Title: B757 PLT IS FATIGUED AND FALLS ASLEEP DURING CRUISE.

Narrative: WHILE AT CRUISE; I FELL ASLEEP FOR SEVERAL SECONDS REPEATEDLY. BECAUSE OF THIS WE MISSED A FREQ CHANGE AND CHANGE OF CTRS. CONTRIBUTING TO THIS WAS MY INABILITY TO GET ENOUGH SLEEP FOR 2 DAYS PRIOR TO THE EVENT AND AN ALL-NIGHT FLT THE NIGHT BEFORE THIS. MY FIRST LAYOVER WAS 22 HRS LONG BUT I COULD ONLY GET 6 HRS SLEEP AND NONE IMMEDIATELY BEFORE THE ALL-NIGHT FLT. MY SECOND LAYOVER WAS ABOUT 10 HRS LONG BUT I COULD ONLY GET 4 HRS REST.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.