The matches, set for on May 6 and 8, would fall in the middle of the IPL, the final schedule of which is still to be worked out.
The players' auction for the event will take place on February 13.
The Sri Lankan would be free to play in the IPL only if their Board chooses not to enforce the policy of putting national duty over IPL in view of the fact that the short series is against an Associate country.
"They're going to be tough opposition but Irish conditions in May will be to our advantage."
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Simmons said the matches would be a valuable learning experience for the Irish.
"Ireland need as many matches as possible against Full Member sides: it's how we measure ourselves now in terms of our cricketing progress. We'll be gearing our preparation towards the 2015 World Cup, and this series is ideal," he said.
"We'll be looking to take our cricket to the next level in 2014 by winning from these types of situations, pressing home our advantage when we're on top."
Sri Lanka's previous visit to Ireland was way back in 1979 for a first-class match, which ended as a draw.