Medicine dose. Befor going to sleep.

From last few months, my BP has been increasing ,due to which my doctor has increased my dosage of medicines which I take to control BP I am taking Nicardia 20 when blood pressure goes more than 140 but I have observed , after 2-3 hours , BP gets low and it reaches 105 and even less. I am a CKD patient . Following are my dosages Morning - Nicardia 20 Afternoon - Moxovas 0.3 + Minipress XL 5 Evening - Nicardia 20 Night - Moxovas 0.3 + Minipress XL 5 Before going to sleep - Nicardia 20 I tried taking Nicardia 10 before going to sleep but it does not serve the purpose and BP starts increasing and goes upto 170-180 in 3-4 hours. Please advise , which medicine I should take befor going to sleep. Thank you