Uy, ang first trimester nausea is really tough, especially kapag gusto mo lang matulog! A few of us mums I know had the same thing, one swears na small, frequent sips of ginger tea or even just chewing on ginger helped her more than water, and another one said eating something bland like crackers bago pa matulog helped lessen the nausea at night. Pero honestly, if it's this intense na hindi ka makatulog at mahirap uminom ng water, best to check with your OB kasi they might suggest something safe para sa first trimester or check kung may dehydration already, mas common ito sa atin dito and your doctor can give you better options. Hang in there, mama, this phase does pass!