Is five days going to be enough this July?

Me, my husband, my mother, and my two kids ages 7 and 2 are going to Disneyland this July. I already have a family suite at the Camelot reserved.

Is five days going to be enough to see pretty much everything? I know a Disney hotel will get early entry for selected rides on some days. It also will cost me 4500 more to stay in one. I don't want disappointed kids , I remember how hot and crowded Disneyland is in July from when I was a kid.

My husband doesn't want to be crammed in a single room with his mom in law at night, and I think it's reasonable of him to ask this. I would need two rooms or a suite hence the big bucks.

Should I make the stay longer? Should I do some OT and suck it up and pay the extra 4500? Or will some careful planning make five days ok?