Say no it is not in your contract.

Or ignore the page/call and tell them you are too sound of a sleeper.

Don't let your co-workers decisions change your own because they may be looking for leadership from you.

I'm confused - Do you mean you were asked to work/be on-call 24 hours per day, seven days per week? If so - hell no. Hopefully I misunderstood what you meant by 24x7! [Edit to update] If that is in fact the case, I would suggest you ask for all of the Directors' cell-phone numbers and call them at 2am or 4am etc and if they don't answer then ask them why they expect you to do something they don't do themselves but I honestly think I must be misunderstanding the 24x7 bit

Yes, there was misalignment on service ownership and management decided on Friday that our team would cover 24x7 on call for 10 days of holiday (we have a company holiday the week of us thanksgiving).

The 10 days were split between 3 team members (myself and 2 others).

The situation is a failure, feels arbitrary and makes me livid.

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Would love to do that :p get their numbers tell them to make sure they have internet at all times and be within 5 minutes of their laptop at all times.

Sounds like this service can be without support for a while. After all, it wasn't important enough for someone to figure this out in advance. I'm sure if it goes down overnight the business will be fine.

That isn't in my contract but if you want to talk about contract re-negotiation, I'm up for talking about all those inflation-busting raises I've missed over the years...

If they're paying you time and a half for every minute you're on call just waiting around that week, I'd consider it. Otherwise I'd refuse that if I were you. No job is worth your sanity like that. Leave if you must and find someone who respects you more.