Hi,
My doctor lets me take the ones that make you drowsy at bedtime, and divides my other meds, taking half in morning and half at bedtime.
I'll explain; in morning I take 5 mg. norvasc and 20 mg of Lisinopril. At bedtime, I take the other 5 mg of norvasc and 20 mg of Lisinopril, as well as 50 mg of Atenenol which makes you drowsy. I've been doing this for the past 3 years, works like a charm and I get a good night sleep.
My pressure during the day runs about 123-127/78-80. He and I am very happy with those numbers considering I had extremely high pressure which caused my stroke. Thank God 4 years later, I have not had any reoccurences.
You might want to discuss different options with your doctor.
Hope this helps!