So difficult for anyone to answer this for you without seeing a full list of your outgoing expenses - and I can't imagine anyone would like to share that online with the world!
I would say yes it would be very easy to live off £60K. But it's more of a question of do you want to live off £60K?
My DH and I very happily manage on much less, and our mortgage payment is slightly higher. However we are both financially very prudent, have at least 25% of DH's wage at the end of the month to save. We do splash out on items where spending more truly does get you more such as holidays or household stuff like vacuums. But in most day-to-day things like clothes, we are incredibly frugal and never buy anything new. Come to think of it, I don't think either of us have bought any clothes at all in years anyway. I also am very low maintenance beauty wise. I have a few skincare holy grails that I do splash out on, but other than that I never get my hair or nails done or anything like that. So it depends on whether that would make you happy - maybe you'd be miserable looking like me lol, no shame in that at all! Do what makes you happy. So the question of whether £60K is enough really does just depend on what you consider to be expenditure that's essential to make you happy 
I would echo other posters in asking whether you're married - I would not have been too happy to give up work without being married, purely for the legal protections that come with marriage.
We can argue until the cows come home about whether being a SAHM is work (I would rather we simply moved away from the idea that someone has to be "working" in the capitalist sense in order to be considered as valuable to society), but surely everyone agrees it's a perfectly valid and pretty normal choice, and women who chose it should not face financial ruin because of it.