Can I claim carers for someone while on SSP?

All about money

I am currently claiming SSP from work due to been off sick. I am caring for my wife who has severe mental health problems. Could I claim Carers Allowance?
It would depend on how long your off sick for, if you intend to return to work, how many hours a week you work when your not on ssp, how much you earn per week and what benefits your wife is on