I'm a carer to a disabled child of 4 (who does go to school), and I've also got an 8 month old at home
The set up is - Me and H have one day each at the weekend for a 'proper' lay in.
But during the week, I get up with DC1, whatever time that may be - usually between 4.30am and 5am. The 8 month old doesn't get up until 7.30 so I won't include her in this! She's still asleep anyway
Yet H sleeps in until gone 7, every weekday morning. And some days he will announce 'I'm not going into the office today' and not have to drag himself out of bed until nearer to 8.30 or later. So I feel resentful, as I've often got up at 4.30 
AIBU to feel resentful?