Originally Posted by
liem22
SQ12 : SIN-NRT, 09:25-17:30 -> probably short nap during this flight ?
SQ12 : NRT-LAX, 19:15-13:25 -> when should be the right time to do the long sleep?
SQ1 : SFO-HKG, 01:00-06:35 -> seems to be whole 14-hours flight in darkness? should the long sleep be put towards the end of flight?
SQ1: HKG-SIN, 08:00-11:50 -> doesn't matter anymore, just a short flight anyway

Sleep SIN-NRT and nap NRT-LAX and than same in reverse. Sleep to HKG and nap to SIN. That is my technique.