Norwich are currently four points clear of 18th-placed Sunderland, with the two teams set to meet at Carrow Road next week.
After edging past Newcastle last week, Alex Neil’s men suffered a setback on Saturday, slumping to a 1-0 defat at Crystal Palace – a result that keeps them in the mix for relegation.
Meanwhile, a 2-0 defeat to top-of-the-table Leicester City means Sunderland remain in 18th, four points behind the Canaries, with all eyes now on their trip to Carrow Road next week.
And Jarvis admits the visit of Sam Allardyce’s men could prove decisive in the race for Premier League survival.
He told the club’s official website: "Each game gets bigger and bigger, so it's massive. That's what happens at this time of the year. Being at home, we know if we're able to get the win it would give us a big jump.
"We really wanted to take something from [Palace] but have to ensure our home form continues. That starts with getting a good result on Saturday."
Although attention has already turned to the next game, the former West Ham play-maker insists Norwich deserved more from the defeat at Selhurst Park, but says there are plenty of positives to build upon.
"Over the past few weeks we've shown how well we can defend, as well as attack. We created numerous opportunities [against Crystal Palace] but they just didn't fall our way.
"We got into the right positions but couldn't test the goalkeeper enough. Ultimately we've paid the price for that so we need to make sure we bounce back next week."