Sleeping and eating well is/are?

[sitifan]

Sleeping and eating well is just as important as working out hard. (My bold.)
https://www.quora.com/I-m-15-I-work...t-of-the-days-I-rest-Are-4-rest-days-too-much

Can I use "are" instead of "is" in the above quotation?

 

[probus]

This is a frequently asked question. Personally I prefer "are" in such cases, but you'll hear both the singular and the plural verb. So you can certainly use “are“ there.