Care Father With Dementia

I am looking to help with care for my Father. He is nearly 78 years old and has dementia. He's a lovely man with a good sense of humor and the highlight of all of our days. But unfortunately he is needing of some extra attention. My mother is his primary care giver and all though she is great we (her children) are noticing she needs some time for herself to help recharge so she can be her best self. I am hoping to speak to you more about this. Thank you for your time.