Keep falling asleep trying watch it :( 6th consecutive night!

I put it on first night and got to the giant Cyclops scene and then cant hold on and next thing i know i open my eyes and its the end credits...

ok no problem i was tired.. next night just watch the 2nd half simple right?...i put it on from where i left it and i get to bill nighy and BAM im out again...i wake up all groggy on sofa dead of night, the Wrath menu on screen...

ok no problem next night i will just watch from bill nighy...easy right? So i start watching from him and his silly accent and i get to them in the maze and i start to feel tired again but im like no way im staying awake! Next thing i know i open my eyes to seeing Zeus turn into a sand castle...ahhh crap!..ending ruined!

next night get abit further but start to fade in and out of consciousness when the trio find Zeus all white looking like Lawrence Oliver from original Clash (was so tired i thought this was a dream i was having melding the old Clash with new)...then BAM im out like a light again...wake up to credits.

try again next night ...dont even make it to where i got the prev night as im trying to rewatch from further back to make sense of it all...wake up to neeson telling RFinnes 'lets have sum fun!' WTF? turn it off and steer my groggy body to the sack

anyway tonight the same happened again...although i did wake up earlier to see mount Kronos slowly throw some lava before i was sent back to the land of Zzzzs...

so ive conceded defeat...i cant get through this damn movie! i dunno what it is i just cant keep my eyes open for the 2nd half, which is a shame as the FX look incredible

Or maybe i should try watching it earlier..but then who has time these days