Assalamu 'alaikum wa rahmatullahi wa barakaatuh.
I know about a Shahih Hadits where 'Aisyah ask Rasulullah about her late to do Shalat Shubuh, because she likes to get up late for Shubuh. And he replied to Aisyah Radhiyallahu 'anha that she could do it when she rise.
Just bring 2 bottle...